Britain and France on Friday agreed a new deal to thwart illegal cross-Channel migration after talks between President Emmanuel Macron and Prime Minister Rishi Sunak in Paris.

London will step up funding to France over the next three years to total 541 million euros ($575 million), allowing the deployment of "hundreds" of extra French law enforcement officers along the Channel coast to stop the illegal migration, the British government said in a statement.

Macron said his talks with Sunak marked a "new start" between Paris and London after the tensions caused by Brexit.