BNP Joint Secretary General Khairul Kabir Khokon has been picked up from a house in the city's Sipahibagh area, alleged his family.
He was detained at about 2am on Thursday from his brother's Sipahibagh residence, said BNP chief's press wing Shamsuddin Dider in the morning quoting Khokon's wife Shirin Sultana.
A team of Detective Branch (DB) of police picked him up from there, he added.
