A video of a small boy tearfully asking a medic whether he is going to die after supposedly inhaling chlorine gas has emerged from the war-torn Syrian city of Aleppo.

Wrapped in a blue blanket and eyes red from gas exposure and crying, he tells a woman what happened to his family. “I was looking at the planes. The planes dropped a barrel. I saw smoke, it was yellow,” he said. Coughing, he takes his oxygen mask off to go on to say he doesn’t know where his siblings are.

“Am I going to die, Miss? Am I going to die?” he asks as she reassures him he everything will be fine.

The video from Thursday night was shot before the underground hospital the little boy was being treated in was hit in another strike, leaving all of the besieged area’s medical facilities offline.

“We are living in a daily horror movie,” Oussai Alali, a nurse at one of east Aleppo’s destroyed hospitals told The Independent, sending pictures of him and other workers sitting in the rubble.

“Imagine what your country would be like without hospitals. People would die. Now imagine there are war planes and bombs. Every day children are dying. Now more will,” he said.

One hospital worker said they estimated 1,700 barrel bombs, missiles and artillery strikes have hit east Aleppo since Syrian President Bashar al-Assad renewed the attack on the area last Tuesday. At least 140 people have died in the fresh campaign so far, the UK-based monitor Syrian Observatory for Human Rights (SOHR) said.

Dahiyet al-Assad - Aleppo Show all 16 1 /16 Dahiyet al-Assad - Aleppo Dahiyet al-Assad - Aleppo A girl who fled areas of conflict rides a vehicle in Dahiyet al-Assad, west Aleppo city, Syria REUTERS/Ammar Abdullah Dahiyet al-Assad - Aleppo Rebel fighters from the Jaish al-Fatah (or Army of Conquest) brigade have a tea in a building under construction Getty Dahiyet al-Assad - Aleppo A rebel fighters' armoured vehicle in Dahiyet al-Assad Reuters Dahiyet al-Assad - Aleppo Rebel fighters from the Jaish al-Fatah (or Army of Conquest) brigades sit on a tank Getty Dahiyet al-Assad - Aleppo Abandoned magazine of shells after rebel fighters took control of Dahiyet al-Assad Reuters Dahiyet al-Assad - Aleppo Rebel fighters ride a pick-up truck with civilians who fled areas of conflict in Dahiyet al-Assad, west Aleppo city, Syria Reuters Dahiyet al-Assad - Aleppo A rebel fighter gestures with a girl who fled areas of conflict while they ride a pick-up truck in Dahiyet al-Assad Reuters Dahiyet al-Assad - Aleppo Smoke rises near a damaged road in Dahiyet al-Assad, west Aleppo city, Syria Reuters Dahiyet al-Assad - Aleppo Syrians carry their belongings as they leave the southwestern frontline neighbourhood of Dahiyet al-,Assad Getty Dahiyet al-Assad - Aleppo A view shows a damaged minaret of a mosque after rebel fighters took control of Dahiyet al-Assad, Syria Reuters Dahiyet al-Assad - Aleppo Rebel groups have pledged to push from newly captured positions in the Dahiyet al-Assad district towards Hamdaniyeh. Rebels and allied jihadists launched a major offensive on October 28, 2016 to break through government lines and reach the 250,000 people living in the city's east Getty Dahiyet al-Assad - Aleppo Rebel groups have pledged to push from newly captured positions in the Dahiyet al-Assad district towards Hamdaniyeh Getty Dahiyet al-Assad - Aleppo Rebel fighters from the Jaish al-Fatah (or Army of Conquest) brigades hold a position at an entrance to Aleppo, in the southwestern frontline neighbourhood of Dahiyet al-Assad Getty Dahiyet al-Assad - Aleppo Smoke billows from the frontline district of Dahiyet al-Assad following an attack by rebels on Syrian regime forces in the northern city of Aleppo Getty Dahiyet al-Assad - Aleppo Syrians carry their belongings as they leave the southwestern frontline neighbourhood of Dahiyet al-Assad Getty Dahiyet al-Assad - Aleppo People who fled areas of conflict ride a pick-up truck in Dahiyet al-Assad, west Aleppo city, Syria Reuters

SOHR also collaborated on the ground reports that the bombing that had injured the little boy had taken place, but could not confirm whether chlorine gas had been used.

The Syrian government denied that it had used the chemical weapon. Damascus supposedly destroyed its chemical weapon arsenal after international outcry over a 2013 sarin gas attack on a rebel area which killed at least 281 people.

Although both Damascus and its allies in Moscow say that air strikes on east Aleppo - home to around 250,000 people - do not target civilian infrastructure, all of the area’s hospitals and first response centres have been repeatedly targeted, forcing most to move to underground locations or move frequently. The World Health Organisation says that the Syrian regime has attacked health facilities across the country 126 times in 2016 alone.

On Tuesday, Syrian state media reported that government-allied ground troops had made gains on rebel neighbourhoods, adding to the growing sense of despair in east Aleppo since government forces managed to cut off rebel supply lines completely in July.

Premature babies removed from incubators and treated on the floor of a civlian home after the bombing of an east Aleppo hospital (Yasser Al-Rahil)

Rebels have tried several times to break the siege on the east, without success, although they have killed scores of west Aleppo civilians in rocket and mortar attacks.

One European diplomat told AFP it is seemingly a matter of time before the city completely falls to government forces.

“Now, it's just a question of how long [the rebels] can hold on,” the diplomat said, speaking on condition of anonymity.

“There is nothing to eat, no more hospitals and the bombardment is non-stop. They are under very strong pressure.”

The UN warned last week that the last food parcels had been distributed inside the siege barricades, leaving residents facing starvation this winter if aid is not allowed in soon.