Several large fires have broken out in the Calais Jungle on the third day of the operation to clear it.
A huge plume of dark grey smoke could be seen from a distance billowing over the sprawling migrant camp.
Charred remains of what hours earlier were shops and restaurants providing residents with chai tea and naan bread flanked the once-bustling main thoroughfare.
Overnight, fire crews tackled multiple blazes which burned from 1am until they were all extinguished three hours later, police said.
Four migrants have been arrested in connection with starting fires, said Patrick Visser-Bourdon, the Calais police commissioner in charge of the operation.
Around 10 large blazes started tearing through caravans, tents and shelters in the centre of the camp a little before midday on Wednesday.
The sound of exploding gas canisters could be heard as the flames ripped through what were recently migrants' and refugees' homes.
Firefighters used hoses to battle the flames gutting the Peace restaurant, which just days ago was serving chai tea to residents.
Police were ushering people out of the camp, many of whom held fabric to their mouths and noses to protect against the thick black smoke.