At least 17 people have died after security forces in Daraa, Syria, fired on protesters who gathered after Friday prayers, according to a doctor at the scene. He said that at least 310 people had been injured as security forces are blocking doctors from getting to the city's main hospital to tend to the wounded. Gunfire could be heard in the background as he spoke. But the country's state news agency, SANA, reported that unnamed gunmen fired into the crowd, killing one security official and wounding dozens more. The agency says the gunmen also fired on an ambulance while it was transporting the injured to a nearby hospital, killing the driver of the vehicle. The agency says that state television broadcast images of the gunmen firing into crowds in Daraa. Security forces are also arresting protesters, said Wissam Tarif, a human rights activist outside Damascus who had received reports about the unfolding violence.