Four persons were injured by crude bombs of Blockade supporters on Wednesday night.
The incident took place in Panthapath at about 8:15pm.
Police inspector of DMCH outpost, Mozammel Hauque told the Dhaka Tribune.
The injured were Abidur Rahman, 48, Robiul, 35, Khokon, 30 and Daud Khan, 30.
They all were taken to Dhaka medical college hospital.
Abidur and Khokon works for a private company, while Robiul and Daud Khan are rickshaw pullers.
The condition of Abidur is grave, the police officer said.
