Aid agencies are warning that those fleeing Isis’s last strip of territory are “in the worst condition since the crisis began”, as 12 died after arriving at al-Hol camp in northeastern Syria.

Two thousand women and children arrived at the camp overnight into Wednesday after escaping fighting in Baghouz, with 60 needing immediate hospitalisation and another 12 deaths recorded, the International Rescue Committee, which runs the camp, said in a statement on Thursday.

“These women and children are in the worst condition we have seen since the crisis first began. Many have been caught up in the fighting and dozens have been burnt or badly injured by shrapnel,” Wendy Taeuber, IRC’s Iraq and northeast Syria country director said. It is unclear how many children were among the 12 who died.

Kurdish authorities and aid agencies are struggling to cope with the huge numbers of those who have been displaced, with more than 60,000 arriving at the camp since fighting began. Some 90 per cent of the arrivals have been women and children.

A victory over the last strip of Isis territory appears imminent, with only the most battle-hardened fighters left in Baghouz, believed to be hiding out in underground tunnels.

Syria at war: Fleeing the caliphate Show all 14 1 /14 Syria at war: Fleeing the caliphate Syria at war: Fleeing the caliphate Trucks full of women and children arrive from the last Isis-held areas in Deir ez-Zor, Syria Richard Hall/The Independent Syria at war: Fleeing the caliphate Zikia Ibrahim, 28, with her two-year-old son and 8-month-old daughter, after fleeing the Isis caliphate Richard Hall/The Independent Syria at war: Fleeing the caliphate Trucks full of women and children arrive from the last Isis-held areas in Deir ez-Zor, Syria. Richard Hall Richard Hall/The Independent Syria at war: Fleeing the caliphate Men who fled the last Isis-held area of Syria line up to be questioned by American and Kurdish intelligence officials Richard Hall/The Independent Syria at war: Fleeing the caliphate Trucks full of women and children arrive from the last Isis-held areas in Deir ez-Zor, Syria. Richard Hall Richard Hall/The Independent Syria at war: Fleeing the caliphate A young girl pulls her belongings after arriving Richard Hall/The Independent Syria at war: Fleeing the caliphate An SDF fighter hands out bread to women and children after they arrive Richard Hall/The Independent Syria at war: Fleeing the caliphate Sita Ghazzar, 70, after fleeing from the last Isis-held territory in Syria Richard Hall/The Independent Syria at war: Fleeing the caliphate A family from Russia who recently fled the last Isis-held area of Syria Richard Hall/The Independent Syria at war: Fleeing the caliphate Trucks full of women and children arrive from the last Isis-held areas in Deir ez-Zor, Syria. Richard Hall Richard Hall/The Independent Syria at war: Fleeing the caliphate Trucks full of women and children arrive from the last Isis-held areas in Deir ez-Zor, Syria. Richard Hall Richard Hall/The Independent Syria at war: Fleeing the caliphate Trucks full of women and children arrive from the last Isis-held areas in Deir ez-Zor, Syria. Richard Hall Richard Hall/The Independent Syria at war: Fleeing the caliphate Trucks full of women and children arrive from the last Isis-held areas in Deir ez-Zor, Syria. Richard Hall Richard Hall/The Independent Syria at war: Fleeing the caliphate Richard Hall Richard Hall/The Independent

Those who escaped are now living in squalid conditions and are sleeping in large, overcrowded tents in the camp.

Malnutrition, freezing temperatures and a lack of medical care have led to the deaths of at least 138 people since December, the IRC said. The vast majority (80 per cent) of those who died were infants under five years old, with two-thirds being babies one-year-old and under.

The main cause of death for infants in al-Hol has been severe acute malnutrition, pneumonia and dehydration, which reflects the dire conditions they had been living under in Baghouz, Paul Donohoe, from the IRC, told The Independent.

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Since the final push to defeat the jihadis, there has also been an uptick in war-related injuries, with women and children caught up in the fighting, he added.

Hospitals are overwhelmed, with an increasing number of people needing treatment for severe burns or shrapnel wounds.

“We are expecting another 3,000 to arrive soon, and we are very worried that they may be in even worse shape,” Ms Taeuber said.