An unidentified person opened fire on police units with a kalashnikov (AK-47) in Istanbul's Taksim neighborhood on Jan. 30, but no causalties were reported.The attacker fled after the attack, leaving her gun at the scene. Witnesses said the attacker was a woman with blond hair and around 160 centimeters tall.Police cordoned off the area to investigate the scene, while an operation has been launched to apprehend the woman.The woman was caught on security camera belonging to a nearby work place in Tarlabaşı while she was escaping.