Four people have been detained in connection with a car bomb attack targeting a police bus that killed 11 people Tuesday in Istanbul, state media report.
(CNN)- The blast, in the Vezneciler area of Istanbul’s historic Faith district, occurred about 8.40 a.m. local time during morning rush hour.
It killed seven police officers and four civilians, and left 36 people injured, three of them critically, Istanbul Gov. Vasip Sahin told reporters.
Local media reported that the blast was remotely detonated. No group has taken responsibility for the bombing, and Sahin said the investigation into the attack was ongoing.
Images from the blast area showed security personnel at the scene and visible damage to vehicle and buildings.