Exclusive: Kareem Shaheen reports from Khan Sheikhun, where he was the first reporter from western media to reach the site of this weeks devastating atrocity

Khan Sheikhun is a ghost town, its streets deserted and silent as though mourning the victims of the atrocity that occurred here two days earlier.
The only reminder of what happened is a small, blackened, crater near the north of township, where a rocket laced with a nerve agent fell, killing more than 70 people in one of the worst mass casualty chemical attacks in the six-year war in Syria.
All that remains of the attack on the town in rebel-held Idlib province is a faint stench that tingles the nostrils and a small green fragment from the rocket. The homes nearby are emptied of the living.
The victims symptoms are consistent with sarin, the nerve agent that was dropped on an opposition-held area near Damascus in 2013, killing more than 1,000 people. After that attack the regime supposedly gave up its chemical weapons arsenal.
Moscow, Bashar al-Assads principal backer in the war, said the Syrian government had bombed a rebel-run toxic gas manufacturing plant in Khan Sheikhun, and that the gas were then leaked out.
The Guardian, the first western media organisation to visit the site of the attack, analyzed a warehouse and silos immediately next to where the missile had landed, and found nothing but an deserted space covered in dust and half-destroyed silos reek of leftover grain and animal manure.
Residents said the silos had been damaged in air raids six months ago, and had stood unused since then.
You can look at it; theres nothing there except maybe some grain and animal excrement, and theres even a dead goat there that suffocated in the two attacks, one person said. Residents responded in disbelief to the Russian allegation.
There was no evidence of any build being hit in recent days or weeks near where so many people were killed and wounded by a nerve agent. The homes across the street seemed undamaged from the outside. There was no contamination zone near any build. Instead, the contamination region radiated from a pit in a road.
The Guardian interviewed witness, first responders, victims relatives and the wounded in an effort to reconstruct the attack. They offered fresh details that shed light on an incident that has prompted worldwide condemnation and refocused attention on the brutality of the Syrian war.
It was like Judgment day, said Hamid Khutainy, a civil defense volunteer in Khan Sheikhun.
Witnesses said the air raids began shortly after 6.30 am on Tuesday, with four bombings around the town. Initially they thought it was just another airstrike, until the first responders who arrived at the scene began falling to the ground.
Khutainy said: They told us HQ, we are losing control. We had no notion what they were trying to say. Then they said, come save us, we are unable stroll. So the second and third squads went with simply face masks. We could smell it from 500 metres away.
People described a scene of utter horror at the attack site. The wounded were shaking and convulsing on the ground, foaming at the mouth, their lips blue, passing in and out of consciousness.
Read more: www.theguardian.com