An explosion was heard at the Terem arms factory in the Bulgarian town of Kostenets.
This is reported by the TV channel NOVA.
It is noted that the munition exploded during factory tests.
As a result of the explosion, no one was injured.
“Serious material damage was caused,” – noted the journalists.
Earlier, the explosion was heard at the largest chemical plant of the concern BASF in Ludwigshafen (FRG).