Police on Friday afternoon detained ABM Mosharraf Hossain, BNP's training affairs secretary, from near Uttara while he was returning to the capital from Tongi, reports UNB.
BNP senior joint secretary general Ruhul Kabir Rizvi told UNB that plain-clothes police detained Mosharraf around 4:30pm.
Rizvi strongly condemned and protested the detention of the BNP leader and demanded his immediate release.
Earlier, at a press conference Rizvi alleged that police had arrested at least 275 party leaders and activists including its standing committee member Gayeshwar Chandra Roy in the past four days, ahead of party's executive committee meeting on Saturday.
He alleged that the government was arresting mainly the executive committee members so that BNP fails to conduct a successful meeting.
BNP's executive committee is set to hold a day-long meeting on Saturday at hotel Le Meridien to work out party's next course of action as a court will deliver its verdict in the graft case of BNP chairperson Khelada Zia on 8 February.