According to sources, led by Al Masum, organising secretary of the college unit JCD, a group of ruling BNP's student wing activists stopped a route No. 10 passenger bus before HR Building in Shantinagar at about 12:00pm.

Forcing passengers down from the vehicle, they took driver Abdur Rashid to their college campus and bashed him, sources added.

Being informed of the incident, a sub-inspector of Motijheel Police Station went to the spot and nabbed JCD leaders Al Masum, Azad, Adnan Rahman and Raihan and later put them behind bars.

Receiving a phone call at about 2:30pm, police freed the four JCD leaders, another source said.

Masum told law enforcers that they confined the driver as the bus hit him Wednesday when he (Masum) was crossing the road in front of the college and the driver sped away with the vehicle.

Rashid was not driving the bus during the incident, but they confined him only to learn who drove it on that day, he added.

Meanwhile, police said they are looking for the driver who hit the JCD leader.

However, the duty officer of Motijheel Police Station said both parties settled the matter within themselves.