Dhaka, May 7 -- The 52-year-old was apprehended in Dhaka's Banani on Wednesday and later handed to the Ramna police, according to RAB-3 Commander and Assistant Superintendent of Police Abu Zafar Md Rahmat Ullah.

He is Managing Director of BLI Securities Ltd.

Minhaz, a cousin of Education Minister Dipu Moni, lost his brother Xulhaz Mannan, a US embassy official and LGBT rights activist, in a militant attack in 2016.

The Rapid Action Battalion also arrested Didarul Bhuiyan of Rashtrochinta, a group of political activists, cartoonist Ahmed Kabir Kishore and writer Mushtaq Ahmed in the same case.

The accused also include blogger Asif Mohiuddin and journalist Tasneem Khalil, both of whom are abroad.

The others are Saer Zulkarnain, who run...