4 killed in blast in Nairobi suburb

At least four people, including two police officers, were killed when a car exploded outside a police station in the Nairobi suburb of Pangani, Kenya's Ministry of Interior said Wednesday on its Twitter account.

Interior Secretary Joseph Ole Lenku is at the scene of the blast, the ministry said.

Police also found another grenade at the scene of the explosion and detonated it, according to the ministry.