ISTANBUL – Two female attackers on Thursday opened fire and hurled a hand grenade at police outside of a riot police station in Istanbul, Turkish media reports said. Two female militants trapped in a building in Istanbul after ‘bombing police station’ pic.twitter.com/voVd9vN0AY — Maoistes (@Maoistes) March 3, 2016 One of the assailants was believed to have been wounded when police returned fire. The state-run Anadolu Agency said that the two attackers escaped the scene in a vehicle and were hiding inside a building some distance from the police station. Police have surrounded the building and are preparing to launch an operation to catch them, Anadolu said. <iframe src=”https://www.youtube.com/embed/oHKqR802FO4″ width=”560″ height=”315″ frameborder=”0″ allowfullscreen=”allowfullscreen” data-mce-src=”https://www.youtube.com/embed/oHKqR802FO4″></iframe> Dogan news agency showed what appeared to be security camera footage of the two women firing at a police bus and throwing a hand grenade at it, before apparently aiming at the police station. No police officer was injured in the attack, according to state-run TRT television. The motive of the attack was not known but both Kurdish rebels and militants of a far-left organization have attacked police in the past.