Shopkeepers, businessmen, farmers and police unionists in Calais have pledged to block 'indefinitely' the motorway leading to the port with a 'human chain', saying they will not break it until the migrant Jungle camp that has now swollen to up to 10,000 people is totally dismantled.

The unprecedented action, due to start on Monday, came as the local head of France’s national haulage federation warned: "Migrant violence hasn’t gone up a notch, it’s gone up 10 floors."

Lorry driver representatives issued a joint call with an umbrella group of shops and businesses in Calais, the CGT union, farmers and the SCP Police union, saying that they had run out of less militant ways of calling a "halt to insecurity in Calais".