Explosion hits Damascus residential area

DAMASCUS (Reuters) - An explosion tore through a residential area in the Syrian capital of Damascus on Tuesday, but it was not immediately clear if it caused any casualties.

Security officials at the scene refused to comment.

Witnesses saw a mangled white car being towed away by police who cordoned off the area, which houses an Iranian school, a police station and a main Syrian intelligence office.

No further details on the explosion were immediately available. It was not clear what caused the blast.