Police have arrested one charge-sheeted accused in the case filed over attacking former US Ambassador to Bangladesh Marcia Bernicat's motorcade in the capital's Mohammadpur area in 2018.

A team of the Detective Branch (DB) of police arrested Siam Hasan, 26, conducting a drive at a house at Tajmohol Road under Mohammadpur Police Station at 11:30 pm on Monday, according to a SMS of the DB media and public relations wing.