Police in Paris are threatening the lives of homeless migrants by stealing their blankets as temperatures drop to freezing, a leading international aid agency claimed today. It is all part of a campaign of harassment aimed at getting unwanted foreigners off the streets of the French capital. Doctors without Borders (Medecins Sans Frontières) said in a tweet: 'The police should stop confiscating the covers of migrants sleeping on the streets of Paris. 'These unacceptable practices put the life of migrants in danger: teams from Doctors Without Borders had to look after eight people close to hypothermia.' It comes as hundreds of new migrants flood into the city from war-torn countries including Afghanistan and Syria. Many are trying to get to Britain, where they want to claim asylum. Migrants were evacuated from a makeshift camp in Paris The vast 'Jungle' refugee camp in Calais - where up to 10,000 lived at one point - was torn to the ground in October, as the port town was turned into an immigrant free zone. Many headed towards Paris, where camps regularly appear in public parks and squares, many of them close to the Eurostar train hub. There is a single official refugee centre, but it can only deal with 400 men at a time, and they can only stay for two weeks maximum. The crisis means that CRS riot police are continually ordered to destroy camps, and they use baton charges and tear gas to clear areas. 'A lot of the raids take place just before sunrise, when temperatures are at their lowest,' said a local charity worker. 'The makeshift huts and tents being used are torn down, and the refugees are left to fend for themselves. 'Some have never experienced a European winter before, and find are left absolutely freezing. Their lives are in serious danger, but the police do not care.' A Paris police source said they were under orders to keep the city free of illegal camps.