Explosions and shooting were heard in the central part of Russian-occupied Berdyansk on 6 September, the city council has said on Facebook, citing reports from locals.
"Explosions and shooting in the city centre continue. Ambulances and representatives of the occupying police have rushed to the centre," the council said.
Pro-Kremlin media reported that the so-called commandant of Berdyansk, Artem Bardin, was injured in the blast.
Last month the car of collaborator Oleksandr Kolesnikov detonated in Berdyansk. The explosion took place near the Kryvorizkyy Hirnyak recreational centre in Berdyansk.