Ukraine has used U.S weapons to strike inside Russia in recent days, according to a Western official familiar with the matter.

What You Need To Know

  • A western official says that Ukraine has used U.S weapons to strike inside Russia in recent days

  • The weapons were used under recently approved guidance from President Joe Biden allowing American arms to be used to strike inside Russia for the limited purpose of defending Kharkiv, Ukraine's second-largest city

  • Ukrainian officials had stepped up calls on the U.S. to allow Kyiv's forces to defend themselves against attacks originating from Russian territory

  • In advancing in the northeast Kharkiv region, Russian forces have exploited a lengthy delay in the replenishment of U.S. military aid

The weapons were used under recently approved guidance from President Joe Biden allowing American arms to be used to strike inside Russia for the limited purpose of defending Kharkiv, Ukraine's second-largest city.

Biden's directive allows for U.S.-supplied weapons to be used to strike Russian forces that are attacking or preparing to attack. It does not change U.S. policy that directs Ukraine not to use American-provided ATACMS or long-range missiles and other munitions to strike offensively inside Russia, U.S. officials have said.

Ukrainian officials had stepped up calls on the U.S. to allow Kyiv's forces to defend themselves against attacks originating from Russian territory. Kharkiv sits just 12 miles from the Russian border and has come under intensified Russian attack.

In advancing in the northeast Kharkiv region, Russian forces have exploited a lengthy delay in the replenishment of U.S. military aid. In addition, Western Europe's inadequate military production has slowed crucial deliveries to the battlefield for Ukraine.

On Tuesday, White House national security spokesman John Kirby told reporters that he could not confirm that Ukraine had used U.S. weapons at targets in Russia.

"We're just not in a position on a day-to-day basis of knowing exactly what the Ukrainians are firing at what," Kirby said. "It's certainly at a tactical level."

According to a June 3 report from the Institute for the Study of War, Ukrainian forces struck a Russian S-300/400 air defense battery in Belgorod Oblast, likely with the High Mobility Artillery Rocket System, or HIMARS, on June 1 or June 2. The air defense system was located roughly about 40 miles from the current front line in northern Kharkiv Oblast and more than 80 kilometers (50 miles) from the city of Kharkiv, which is within the range of HIMARS, the institute reported.

Confirmation of the strikes comes as Ukraine's president, Volodymyr Zelensky, visited Qatar, which along with Saudi Arabia and the United Arab Emirates, has been a key mediators in prisoner swaps and other negotiations between Russia and Ukraine since the war began.