National Council , a leading opposition movement . A feared full-scale crackdown did not happen Saturday , but activists posted a video Saturday that they said showed the military harassing residents of Homs . Mourners on Friday went to bury a 10-year-old boy , Maher al-Husseini , who was allegedly killed by a sniper 's bullet in his own home . The video shows the boy wrapped in a white sheet and carried by men in street towards a cemetery . Some of the men chant `` The martyrs blood will not be lost in vain , '' as the lifeless boy is carried . As the men walk towards the cemetery , gunfire can be heard . They get to the cemetery and start digging as gunfire continues to ring out . CNN could not independently confirm what was depicted in the videos . Western networks are not allowed inside the embattled country . The United Nations said last week that more than 4,000 people have died in Syria since a government crackdown against protesters erupted in mid-March . The regime 's actions have outraged world powers and sparked sanctions by the Arab League , Turkey , the United
-LRB- CNN -RRB- -- At least 16 people were killed by security forces across Syria Saturday as unrest there continued , a human rights organizations said . Three people were killed in the city of Homs , where a strong military presence was reported , the London-based Syrian Observatory for Human Rights said . Another three were killed in Hama province . The Local Coordination Committee of Syria reported that Syrian security forces were storming the Damascus suburb of Zabadany and were shelling housing and positioning snipers . The group also announced , in a separate incident , the killing of Dr. Ibrahim Nahel Othman , who they described as `` one of the most important physicians in the Syrian Revolution . '' He was killed by gunfire near the Turkish border , the group said . Another group , the Coalition of Free Damascus for Peaceful Change , said that the doctor was a wanted man because he performed many surgeries on wounded protesters . The reported deaths came amid tensions in Homs -- a center of regime arrests -- as military troops manned more than 60 checkpoints inside the city and surrounded it , according to the Syrian