NICOSIA (AFP) — At least 25 inmates were shot dead by Syrian security forces during a riot by political detainees at a prison in mountains outside Damascus on Saturday, a human rights group said. "Islamist prisoners started a riot inside the prison this morning," the Syrian Observatory for Human Rights said in a statement received in Nicosia, quoting a political prisoner in the Saydnaya jail contacted by mobile phone. "Shooting is continuing against the prisoners," the London-based group said, adding that a number of inmates had climbed the roof of the military prison north of Damascus to escape the violence. ...