Editor's note: This story is being updated.
Ukrainian forces attacked Russian S-400 and S-300 anti-aircraft missile systems in several areas in occupied Crimea overnight on June 10, Ukraine's General Staff said.
The statement came after a series of explosions were reported in the peninsula at night.
One S-400 anti-aircraft missile unit was hit near Dzhankoi, and two more S-300 anti-aircraft missile units were attacked near occupied Chornomorske and Yevpatoria, according to the military.
The radars of the systems reportedly stopped working "immediately" after the strikes.
"None of our missiles fired were intercepted by the enemy's 'highly effective' air defense," the General Staff said.
"In addition, further detonations of ammunition were observed in all three areas of the launching positions of the Russian anti-aircraft missile divisions."
The General Staff did not provide further details on the consequences of the attack or what weaponry was used.
Russia's modern S-400 Triumph air defense system has an estimated price tag of around $1.2 billion.
Four S-400 launchers were destroyed in mid-April along with other equipment in an attack on a Russian military airfield in Crimea, Ukraine's military intelligence (HUR) reported.
The Ukrainian military reportedly struck the ferry crossing in occupied Kerch with U.S.-provided long-range ATACMS missiles overnight on May 30. Two Russian ferries were "significantly damaged," according to Ukraine's General Staff.
Moscow "actively used" the ferry crossing to supply Russian troops in the occupied peninsula and defended it with Russian Pantsir, Tor, and Triumph air defense systems, the Ukrainian military said.
Read also: Russia still hasn’t restored ferry crossing in Crimea after Ukraine’s recent strike, military says
