An unidentified group opened fire on a police station in Istanbul’s Bayrampasa district Thursday morning.

The assailants attacked a security checkpoint at the entrance to the Riot Police Directorate in Bayrampasa, on Istanbul’s European side, and then police officers responded.

After a short shootout, the attackers fled the scene. Witnesses said that one of the attackers was wounded.

Operations in the area continue to catch the assailants.