A blast hit a crowded market in the southeastern Ukrainian city of Melitopol on Thursday, Ukrainian and Russian-installed officials said, on the eve of referendums that could see four regions effectively annexed by Russia.
Melitopol was one of the first cities to fall into Russian hands after Moscow launched a full-scale invasion of Ukraine in February. It is in the Zaporizhzhia region, one of the four where a referendum will be held on joining Russia.
Ukrainian and Russian-installed officials traded blame for the explosion.