Mohammad Kaisar, superintendent of Bhola police, said the clash broke out between the supporters of two member candidates named Yasin Majhi and Ruhul Amin in Charfakira area around 11 am.
There was a chase and counter chase during the clash. At one stage, they exchanged gunshots, leaving Monir Majhi injured. He was taken to a local hospital where physicians declared him dead, said the SP.
Police fired shots in the air to bring the situation under control. Besides, 10 people were injured in sporadic clashes at different polling stations.