'They told us they were the Syrian army': CCTV shows hospital volunteer being shot dead at point-blank range

Sky News has obtained shocking CCTV from inside the main hospital in the city of Sweida in southern Syria - where our team found more than 90 corpses laid out in the grounds following a week of intense fighting.

Warning this article shows images of a shooting The CCTV images show men in army fatigues shooting dead a volunteer dressed in medical scrubs at point-blank range while a crowd of other terrified health workers are held at gunpoint with their hands in the air. The mainly Druze city of Sweida was the scene of nearly a week of violent clashes, looting and executions last month which plunged the new authorities into their worst crisis since the toppling of the country's former dictator Bashar al Assad.

The new Syrian government troops were accused of partaking in the atrocities they were sent in to quell between the Druze minority and the Arab Bedouin minority groups. The government troops were forced to withdraw when Israeli jets entered the fray, saying they were protecting the Druze minority and bombed army targets in Sweida and the capital Damascus.

Days of bloodletting ensued, with multiple Arab tribes, Druze militia and armed gangs engaging in pitched battles and looting before a ceasefire was agreed. The government troops then set up checkpoints and barricades encircling Sweida to prevent the Arab tribes re-entering.

The extrajudicial killing captured on CCTV inside the Sweida hospital is corroborated by eyewitnesses we spoke to who were among the group, as well as other medics in the hospital and a number of survivors and patients. The CCTV is date- and time-stamped as mid-afternoon on 16 July and the different camera angles show the men (who tell the hospital workers they are government troops) marauding through the hospital; and in at least one case, smashing the CCTV cameras with the butt of a rifle.

One of the nurses present, who requested anonymity, told us: "They told us if we talked about the shooting or showed any film, we'd be killed too. I thought I was going to die." Dr Obeida Abu Fakher, a doctor who was in the operating section at the time, told us: "They told us they were the new Syrian army and interior police.

We cannot have peace with these people. They are terrorists." Read more:Inside Sweida: The Syrian city ravaged by sectarian violenceWho are the Druze and who are they fighting in Syria?Why Israel is getting involved in Syria's internal fighting Multiple patients and survivors told us when we visited the hospital last month that government troops had participated in the horror which swept through Sweida for days but this is the first visual evidence that some took part in atrocities inside the main hospital.

In other images, one of the men can be seen smashing the CCTV camera with the butt of his rifle - and another is wearing a black sweater which appears to be the uniform associated with the country's interior security. One survivor calling himself Mustafa Sehnawi, an American citizen from New Jersey, told us: "It's the government who sent those troops, it's the government of Syria who killed those people...

we need help." The government responded with a statement from the interior ministry saying they would be investigating the incident which they "denounced and condemned" in the strongest terms. The statement went on to promise all those involved would be "held accountable" and punished.

The new Syrian president Ahmed al Sharaa is due to attend the United Nations General Assembly next month in New York - the first time a Syrian leader has attended since 1967 - and what happened in Sweida is certain to be among the urgent topics of discussion..