Riot police are controlling the so-called Jungle refugee camp in Calais.
Violence has broken out since a French court ordered the eviction of families living in parts of the camp due to be demolished.
Currently around 4,000 migrants are based in the camp, but between 800 and 1,000 are due to be moved.
Authorities started pulling down makeshift shelters this week and tear gas has reportedly been used on those refusing to leave.
Paris Correspondent with the London Independent John Lichfield says disturbances have been exaggerated:
"Shots of cabins being set on fire and security forces going in and tear gas being used are slightly misleading.
You do have a minority of very very hardline migrants who insist they are going to stay there and get to Britain and they are being helped by about 150 or 200, young people mostly, from Britain who have that kind of far left mentality."
Meanwhile, aerial footage of scenes at the Greek border have emerged. They show a temporary camp at Idomeni where 7,000 asylum seekers who are waiting for their chance to cross into Europe.
Footage from the Idomeni migrant camp via Sakis Gioumpasis on Youtube
And in Macedonia, the government has paid for a massive double line of fences to be erected along the country's border with Greece.
Macedonia is restricting the entry of refugees to match the number of those leaving the country, allowing in only refugees from Syria and Iraq.
Czech police officers stand beside the two-line protective fence set along the border line between Macedonia and Greece, near southern Macedonia's town of Gevgelija, Monday, Feb. 29, 2016. Picture by: Boris Grdanoski / AP/Press Association Images
Elsewhere, Turkey has offered to sign a deal which would make it easier for the European Union to send back refugees and migrants who have been refused entry.
In exchange, the EU has agreed to give the country €3 billion in aid.
It is to be spent on providing shelter for people who have fled the war in Syria.