KYIV, Ukraine (AP) — A Russian fighter jet on Tuesday struck the propeller of a U.S. surveillance drone over the Black Sea, causing American forces to bring down the unmanned aerial vehicle in international waters, the U.S. military said, an incident that highlighted soaring U.S.-Russian tensions over Moscow's war in Ukraine.

A U.S. MQ-9 drone is on display during an air show at Kandahar Airfield, Afghanistan, Tuesday, Jan. 23, 2018.
White House National Security spokesman John Kirby said U.S. President Joe Biden was briefed on the incident by national security adviser Jake Sullivan. Kirby added that U.S. State Department officials would be speaking directly with their Russian counterparts and “expressing our concerns over this unsafe and unprofessional intercept.”
Tuesday's incident appeared to mark the first time since the height of the Cold War that a U.S. aircraft was brought down after being hit by a Russian warplane.
The U.S. European Command said in a statement that two Russian Su-27 fighter jets “conducted an unsafe and unprofessional intercept” of a U.S. MQ-9 drone that was operating within international airspace over the Black Sea.
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It said one of the Russian fighters “struck the propeller of the MQ-9, causing U.S. forces to have to bring the MQ-9 down in international waters.” Prior to that, the Su-27s dumped fuel on and flew in front of the MQ-9 several times before the collision in “a reckless, environmentally unsound and unprofessional manner,” the U.S. European Command said in a statement from Stuttgart, Germany.
“This incident demonstrates a lack of competence in addition to being unsafe and unprofessional,” it added.
U.S. Air Force Gen. James B. Hecker, commander of U.S. Air Forces Europe and Air Forces Africa, said that the MQ-9 aircraft was "conducting routine operations in international airspace when it was intercepted and hit by a Russian aircraft, resulting in a crash and complete loss of the MQ-9.” He added that “in fact, this unsafe and unprofessional act by the Russians nearly caused both aircraft to crash.”

Ukrainian Emergency Service rescuers work on a building damaged by shelling in Kramatorsk, Donetsk region, Ukraine, Tuesday, March 14, 2023. One person has been killed, according to local authorities.
There was no immediate reaction from Moscow, which has repeatedly voiced concern about U.S. intelligence flights close to the Crimean Peninsula, which Russia illegally annexed from Ukraine in 2014. The Kremlin has charged that by providing weapons to Ukraine and sharing intelligence information with Kyiv, the U.S. and its allies have effectively become engaged in the conflict.
Kirby emphasized that the incident wouldn’t deter the U.S. from continuing their missions in the area.
“If the message is that they want to deter or dissuade us from flying, and operating in international airspace, over the Black Sea, then that message will fail,” Kirby said, adding “that is not going to happen.”
“We’re going to continue to fly and operate in international airspace over international waters,” he said. “The Black Sea belongs to no one nation.”
The U.S. European Command noted that Tuesday's incident followed a pattern of dangerous actions by Russian pilots while interacting with U.S. and Allied aircraft over international airspace, including over the Black Sea.
“These aggressive actions by Russian aircrew are dangerous and could lead to miscalculation and unintended escalation,” it warned.
Gen. David Berger, commandant of the Marine Corps, said that this type of collision is his greatest concern, both in that area of Europe as well as in the Pacific.
“Probably my biggest worry both there and in the Pacific is an aggressive Russia or China pilot or vessel captain, or something gets too close, doesn’t realize where they are, and causes a collision,” Berger said, in response to a question at a National Press Club event on Tuesday.
He said that whether an incident is intentional or not, it forces nation’s leaders to try and sort it out quickly from afar. Read the full story:
In liberated Ukraine city, civilians still pay price of war

FILE - An operating light hangs from the ceiling of the destroyed surgery section of the hospital in Izium, Ukraine, Sunday, Feb. 19, 2023. In this war-scarred city in Ukraine's northeast, residents scrutinize every step for land mines. The brutality of the Russian invasion in this one-time strategic supply hub for Russian troops counts among the most horrific of the war, which entered its second year last month. (AP Photo/Vadim Ghirda, File)

FILE - Ukrainian doctor Yurii Kuznetsov speaks to land mine victim Oleksandr Kolisnyk at the hospital in Izium, Ukraine, Sunday, Feb. 19, 2023. In this war-scarred city in Ukraine's northeast, residents scrutinize every step for land mines. The brutality of the Russian invasion in this one-time strategic supply hub for Russian troops counts among the most horrific of the war, which entered its second year last month. (AP Photo/Vadim Ghirda, File)

FILE - Ukrainian doctor Yurii Kuznetsov pauses in the destroyed surgery section of the hospital in Izium, Ukraine, Saturday, Feb. 19, 2023. In this war-scarred city in Ukraine's northeast, residents scrutinize every step for land mines. The brutality of the Russian invasion in this one-time strategic supply hub for Russian troops counts among the most horrific of the war, which entered its second year last month. (AP Photo/Vadim Ghirda, File)

Land mine victim Oleksandr Rabenko, 66 years-old, speaks during an interview with the Associated Press as Murzik, his cat, approaches, at his son's home on the outskirts of Izium, Ukraine, Sunday, Feb. 19, 2023. In this war-scarred city in Ukraine's northeast, residents scrutinize every step for land mines. The brutality of the Russian invasion in this one-time strategic supply hub for Russian troops counts among the most horrific of the war, which entered its second year last month. (AP Photo/Vadim Ghirda)

A destroyed tank is backdropped by homes with the letter Z, used by Russian troops to mark their vehicles, sprayed on the walls, near the village of Kamyanka, Ukraine, Sunday, Feb. 19, 2023. The brutality of the Russian invasion in this one-time strategic supply hub for Russian troops counts among the most horrific of the war, which entered its second year last month. (AP Photo/Vadim Ghirda)

Andrii Cherednichenko, 50, who was injured after stepping on a land mine, speaks during an interview with the Associated Press in his home village of Kamyanka, Ukraine, Sunday, Feb. 19, 2023. In this war-scarred city in Ukraine's northeast, residents scrutinize every step for land mines. The brutality of the Russian invasion in this one-time strategic supply hub for Russian troops counts among the most horrific of the war, which entered its second year last month. (AP Photo/Vadim Ghirda)

A sign that reads "Mines" is placed on the sife of the road in the village of Kamyanka, on the outskirts of Izium, Ukraine, Sunday, Feb. 19, 2023. In this war-scarred city in Ukraine's northeast, residents scrutinize every step for land mines. The brutality of the Russian invasion in this one-time strategic supply hub for Russian troops counts among the most horrific of the war, which entered its second year last month. (AP Photo/Vadim Ghirda)

Land mine victim Oleksandr Rabenko, 66 years-old, pauses during an interview with the Associated Press as Murzik, his cat, touches his face on the outskirts of Izium, Ukraine, Sunday, Feb. 19, 2023. In this war-scarred city in Ukraine's northeast, residents scrutinize every step for land mines. The brutality of the Russian invasion in this one-time strategic supply hub for Russian troops counts among the most horrific of the war, which entered its second year last month. (AP Photo/Vadim Ghirda)

FILE- A destroyed tank lies by the side of the road near the village of Kamyanka, Ukraine, Sunday, Feb. 19, 2023. The brutality of the Russian invasion in this one-time strategic supply hub for Russian troops counts among the most horrific of the war, which entered its second year last month. (AP Photo/Vadim Ghirda)

A sign that reads "Mines" is placed on the side of the road in the village of Kamyanka, on the outskirts of Izium, Ukraine, Sunday, Feb. 19, 2023. In this war-scarred city in Ukraine's northeast, residents scrutinize every step for land mines. The brutality of the Russian invasion in this one-time strategic supply hub for Russian troops counts among the most horrific of the war, which entered its second year last month. (AP Photo/Vadim Ghirda)

A sign that reads "Mines" is placed on the sife of the road in the village of Kamyanka, on the outskirts of Izium, Ukraine, Sunday, Feb. 19, 2023. In this war-scarred city in Ukraine's northeast, residents scrutinize every step for land mines. The brutality of the Russian invasion in this one-time strategic supply hub for Russian troops counts among the most horrific of the war, which entered its second year last month. (AP Photo/Vadim Ghirda)

Andrii Cherednichenko, 50, who was injured after stepping on a land mine, walks on a snowy path in Kamyanka, Ukraine, Sunday, Feb. 19, 2023. In this war-scarred city in Ukraine's northeast, residents scrutinize every step for land mines. The brutality of the Russian invasion in this one-time strategic supply hub for Russian troops counts among the most horrific of the war, which entered its second year last month. (AP Photo/Vadim Ghirda)

FILE- Andrii Cherednichenko, 50, who was injured after stepping on a land mine, stands backdropped by the ruins of his home, in Kamyanka, Ukraine, Sunday, Feb. 19, 2023. In this war-scarred city in Ukraine's northeast, residents scrutinize every step for land mines. The brutality of the Russian invasion in this one-time strategic supply hub for Russian troops counts among the most horrific of the war, which entered its second year last month. (AP Photo/Vadim Ghirda)

Land mine victim Oleksandr Rabenko, 66 years-old, speaks during an interview with the Associated Press as Murzik, his cat, sits beside him at his son's home on the outskirts of Izium, Ukraine, Sunday, Feb. 19, 2023. In this war-scarred city in Ukraine's northeast, residents scrutinize every step for land mines. The brutality of the Russian invasion in this one-time strategic supply hub for Russian troops counts among the most horrific of the war, which entered its second year last month. (AP Photo/Vadim Ghirda)

Residents walk by a sign that reads "Mines", warning of the potential presence of petal mines, as they approach the hospital in Izium, Ukraine, Sunday, Feb. 19, 2023. In this war-scarred city in Ukraine's northeast, residents scrutinize every step for land mines. The brutality of the Russian invasion in this one-time strategic supply hub for Russian troops counts among the most horrific of the war, which entered its second year last month. (AP Photo/Vadim Ghirda)

Land mine victim Vasily Hrushka, 65 years-old, wipes his eye during an interview with the Associated Press on the outskirts of Izium, Ukraine, Sunday, Feb. 19, 2023. In this war-scarred city in Ukraine's northeast, residents scrutinize every step for land mines. The brutality of the Russian invasion in this one-time strategic supply hub for Russian troops counts among the most horrific of the war, which entered its second year last month. (AP Photo/Vadim Ghirda)