Around 200 refugees managed to break into the port of Calais in northern France on Saturday after a demonstration of support for migrants living in a slum nearby ended, enabling some of them to board the front deck of a British ferry, an official said. "A demonstration in Calais has drawn around 2,000 people and in the end around 200 people entered the port, with approximately 50 of them boarding a ferry, the 'Spirit of Britain', on an external deck," deputy Calais prefect Denis Gaudin told Reuters. MS Spirit of Britain is a cross-channel ferry operated by P&O Ferries. Gaudin said that some of the refugees had decided to quit the boat voluntarily and that the rest would be removed by police, if necessary by force.