BEIRUT, March 9, (AP): The death toll from two days of clashes between Syrian security forces and loyalists of ousted President Bashar Assad and revenge killings that followed has risen to more than 1,000, a war monitoring group said Saturday, making it one of the deadliest acts of violence since Syria’s conflict began 14 years ago.

The Britain-based Syrian Observatory for Human Rights said in addition to 745 civilians killed, mostly in shootings from close distance, 125 government security force members and 148 militants with armed groups affiliated with Assad were killed. It added that electricity and drinking water were cut off in large areas around the city of Latakia.

The clashes, which erupted Thursday, marked a major escalation in the challenge to the new government in Damascus, three months after insurgents took authority after removing Assad from power. The government has said that they were responding to attacks from remnants of Assad’s forces and blamed "individual actions” for the rampant violence.

The revenge killings that started Friday by Sunni Muslim gunmen loyal to the government against members of Assad’s minority Alawite sect are a major blow to Hayat Tahrir al-Sham, the faction that led the overthrow of the former government. Alawites made up a large part of Assad’s support base for decades. Residents of Alawite villages and towns spoke to The Associated Press about killings during which gunmen shot Alawites, the majority of them men, in the streets or at the gates of their homes.

Many homes of Alawites were looted and then set on fire in different areas, two residents of Syria’s coastal region told the AP from their hideouts. They asked that their names not be made public out of fear of being killed by gunmen, adding that thousands of people have fled to nearby mountains for safety. Residents of Baniyas, one of the towns worst hit by the violence, said bodies were strewn on the streets or left unburied in homes and on the roofs of buildings, and nobody was able to collect them.

One resident said that the gunmen prevented residents for hours from removing the bodies of five of their neighbors killed Friday at close range. Ali Sheha, a 57-year-old resident of Baniyas who fled with his family and neighbors hours after the violence broke out Friday, said that at least 20 of his neighbors and colleagues in one neighborhood of Baniyas where Alawites lived, were killed, some of them in their shops, or in their homes.