Detectives arrested Azharul Islam, former organizing secretary of Dhaka Metropolitan Hefazat-e-Islam, on Tuesday morning. DMP's ADC Media Iftekhairul Islam said he was arrested from Jatrabari area on sabotage charge. Read:Hefazat forms new committee, drops disputed leaders He was an accused in a violence case over Shapla Chattar incident in 2013, he said. DB Police said at least 50 Hefazat leaders have so far been arrested on sabotage charges. Read: Ex-Hefazat chief Babunagri’s PS arrested