Three of the detainees are foreigners. Their nationality was not specified.
Suspected of involvement in the terrorist attack led to the questioning by the investigators.
Explosion, qualified as a terrorist act has occurred in the centre of Istanbul in the premises of the police station. A woman with a belt female suicide bombers" entered the police station under the pretext that allegedly lost my wallet. She detonated an explosive device inside a building. The explosion of a woman killed, two police officers were injured, one of them later died in hospital.
Turkish media reported that the attack was made by the Russian Diana Namazova from Dagestan. Officially the Turkish authorities and the Russian Consulate General in Istanbul this information is not confirmed.