At least four crude bombs exploded at a polling station during the Chapainawabganj-3 constituency by-polls on Wednesday afternoon.
Confirming the matter Presiding Officer Shafiqul Alam, said no casualty was reported in the incident happened at Krishna Gobindapur Girls' High School polling centre.
"Voting resumed hours after suspension," he added.
He added that unidentified criminals detonated the bombs around 2:00pm.
