Police say the party was holding a protest on the street without prior permission
Police detained 44 leaders and activists of the BNP after Tuesday’s clash at Naya Paltan in the capital.
"The BNP leaders and activists organized a rally to protest the recent communal riots in front of the party headquarters in Naya Paltan around 11am, despite having no permission,” said Hafiz Al Asad, additional deputy commissioner (media and public relations) of Dhaka Metropolitan Police (DMP).
Also read - In pictures: Police, BNP face off in Dhaka
The clash was reported at around 11:30am when some BNP men brought out a procession towards Kakrail crossing at the end of a "peace rally" in front of their office.
They threw brickbats at the police, Hafiz said, adding that the police later fired tear gas in self-defence.
At one point, police baton-charged the BNP men and fired rubber bullets to disperse the crowd in order to bring the situation under control, he added.
BNP Standing Committee Member Gayeshwar Chandra Roy alleged that the police had obstructed the rally and arrested many BNP activists, reports UNB.