Car bombing strikes police station in Yemen's Aden, kills 4

People gather around a car bombing site in Aden, Yemen, Aug. 1, 2019. A car bombing attack struck a police station on Thursday in Aden's neighborhood of Sheikh Othman, killing four security members and injuring 20 others at the scene. No group immediately claimed responsibility for the car bomb attack, but the security source blamed it on extremist groups. (Photo by Murad Abdo/Xinhua)