Russia has destroyed S-300 anti-aircraft missile systems which had been supplied to Ukraine by a European country, Russia's defence ministry said on Monday.
The ministry said that Russian sea-launched Kalibr missiles on Sunday destroyed four S-300 launchers which were concealed in a hangar on the outskirts of the Ukrainian city of Dnipro. Russia said 25 Ukrainian troops were hit in the attack.
Russia did not say which European country had supplied the S-300 systems.
Slovakia, which had donated such a missile system to Ukraine, denied on Sunday that the one it supplied had been hit. It said such reports were Russian lies.
Russian forces also shot down two Ukrainian Su-25 aircraft near the city of Izium and destroyed two ammunition depots, one of which was near the southern city of Mykolaiv, the Russian defence ministry said.
(Reporting by Reuters; editing by Guy Faulconbridge)