One person was killed and at least 24 injured as ammunition exploded at a military training facility in central Russia, a Defense Ministry spokesman said on Wednesday.
The accident occurred around 13:00 Moscow time (09:00 GMT) when two KamAZ trucks with old ammunition were being unloaded.
Earlier on Wednesday, police authorities reported 40 people were injured.
Col. Alexei Kuznetsov said the blast at the Ryazan artillery school about 200 km southwest of Moscow could have been caused by the spontaneous combustion of gunpowder.
He added both trucks were gutted by fire.
A similar incident occurred last year on November 13 at an arms depot in the city of Ulyanovsk, in Russia's Volga region. Two people were killed and dozens injured in an explosion and subsequent fire at the depot.
Just 10 days later a new explosion occurred at the same depot, when military servicemen were loading burnt ammunition into trucks. Eight servicemen were killed and two were injured in the blast.
MOSCOW, June 23 (RIA Novosti)
