Counter-Terrorism and Transnational Crime (CTTC) Unit of Dhaka Metropolitan Police (DMP) on Wednesday arrested one of the alleged militants who was involved in snatching two convicted militants from police custody on the Dhaka court premises, officials said. The arrestee was identified as Mehdi Hasan Omi alias Rafi (24). Rafi is the accused in the case, which was filed with Kotwali police station in connection with the incident. Read more: Mastermind behind militant escape from custody identified: CTTC Chief Two death row convicts in publisher Faisal Arefin Dipan murder case -- Md Abu Siddique Sohel alias Sakib alias Sajid alias Shahab and Moinul Hasan Shamim alias Samir alias Sifat alias Imran-- and also members of the banned militant group Ansar al-Islam, were brought to a Dhaka court on Monday. After producing them before a magistrate, police were taking them back to the lock-up when some of their accomplices emerged out of nowhere, used pepper spray on the police and snatched the militants away. Based on secret information, a team of the CTTC unit arrested Mehdi Hasan Omi alias Rafi. He is a member of the military wing of Ansar al-Islam. Read more: 2 militants who escaped from Dhaka court will be arrested any time soon: DB Chief Deputy Commissioner (DC) of Media and Public Relations Department under the DMP Farooq Hossain said that the arrested militant Mehdi Hasan had directly participated in the incident of militant snatching. However, he did not disclose from where and when he was arrested. Police filed a case against 20 people, including the two death row convicts in the Dipan murder case with Kotwali police station after Sunday’s incident.