Aug. 12 (UPI) -- One person was killed and several were injured following a Russian missile strike on a Ukrainian military training facility.

The Land Forces of the Ukrainian army announced on social media Tuesday that the assault killed one of its soldiers and injured 11 more.

Another 12 soldiers requested medical attention due to stress reactions and shock.

The soldiers did receive a danger signal prior to the attack, but while in the process of moving to shelter, the Land Forces reports that "a group of servicemen fell into the zone of destruction of cluster munitions."

It is unclear where in Ukraine the attack occurred.