13 Palestinians injured in explosion of unknown source in southern Gaza

 A violent explosion rocked one of the training camps of the Qassam Brigades, the armed wing of Hamas, in Rafah, south of the Gaza Strip, on Wednesday afternoon injuring 13 citizens including three children.

Adham Abu Salmiya, the spokesman for the medical services, told the PIC that the casualties of the "mysterious" explosion were in light to moderate conditions.

There was no word yet on cause of the explosion.