**At least eight people have been killed at a Russian ammunition depot, 10 days after explosions tore through the same site, the defence ministry says.**The explosion happened at an arsenal on the outskirts of the city of Ulyanovsk, news agency RIA reported.
The previous explosions and fires killed two soldiers as they attempted to decommission weapons.
The Arsenal 31 depot is about 900km (550 miles) south-east of the capital Moscow.