One person passed away and four others were severely injured during a blast at the military polygon Anevo, as reported by BGNES.
Mayor of the nearby town of Sopot, Veselin Lichev has stated that the one person passed away is not a Bulgarian resident.
According to preliminary information, a hand grenade has exploded during military training in the region.
Immediately upon the accident, several ambulances arrived, accompanied by Sopot's mayor Lichev and local governor Rozalin Petkov.
The military polygon in Anevo is located near Ignatovo, where several unexpected blasts happened last year.