Four policemen on Thursday closed over the death of burnt tea stall owner Babul Matubbar.Maruf Hossain Sardar, deputy commissioner of Dhaka Metropolitan Police confirmed the matter to JagoNews24.com.He said, an investigation is going on against them.The closed policemen are Sub-Inspector Mominur Rahman, SI Niazuddin Mollah, Assistant Sub-Inspector Jogendranath and constable Jashimuddin of Shah Ali Police Station in Dhaka.Earlier on Wednesday night, a police team of Shah Ali Police Station went to the shop of Babul and demanded toll. As the tea seller refused to pay the toll, one of the policemen allegedly hit the kerosene stove with a stick.Later, a petrol team of police took him to the DMCH.Babul Matubbar died of his burn injuries around 1:45pm on Thursday.