Opposition activists said Syrian forces killed more than 30 people on Saturday when they fired a mortar bomb into a funeral procession in Damascus for a man who died in shelling 24 hours earlier. They said amateur video footage, posted on a website, showed the moment the bomb hit the crowd. Another video showed the aftermath - grey smoke filling the air before clearing to show bodies. The body of the man who activists said was killed a day before lay wrapped in a white shroud on the ground. Moments earlier it was being held above the head of mourners as they marched down the street. The footage showed the bodies of those activists said had been killed in the explosion, some barely recognizable and others with limbs missing. The Syrian Observatory for Human Rights said the death toll was likely to rise due to the number injured, according to a report of Reuters. The United Nations has said more than 10,000 people have been killed by Assad's forces.