KNYAZE-VOLKONSKOYE, Russia, Jan. 31 (UPI) --
Three Russian servicemen were killed in a munitions explosion in a combat vehicle during a training operation in the Khabarovsk Region, military officials said.
The armored vehicle was participating in a live-fire exercise Thursday in Knyaze-Volkonskoye, RIA Novosti reported.
"As a result of the blast, three troops, including an officer, were killed," a Defense Ministry spokesman said.
Investigators were trying to determine what caused the explosion.
© 2014 United Press International, Inc. All Rights Reserved. Any reproduction, republication, redistribution and/or modification of any UPI content is expressly prohibited without UPI's prior written consent.