Updated

An ambulance official and a witness in Somalia say a car bomb exploded in Mogadishu, killing four people.

Ali Muse, the head of the city's ambulance service, said the Tuesday blast killed three civilians. Shopkeeper Abdiqadir Abdulahi said he saw one dead policeman as well.

The blast happened near the former Egyptian Embassy though the circumstances weren't immediately clear.

A policeman named Abdi Hassan said a would be suicide car bomb was intercepted hours before the blast and the suicide bomber arrested. But Hassan said the car somehow exploded hours later while in the custody of police.

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