Britain is to pay France €62.7 million to fund a clampdown on illegal migration via the English Channel, the Home Office announced on Tuesday.
The deal between the two countries will see French authorities double the number of officers deployed along the coast with their patrol area widened.
It also includes the deployment of more wide-area surveillance technology and vehicles to boost surveillance along the French coast as well as funds to provide voluntary returns to countries of origin and to invest in reception centres for migrants across France.
The deal was announced on Tuesday evening after British Home Secretary Priti Patel and French Interior Minister Gérald Darmanin met via video-conference.
It comes after a record 430 people crossed the Channel on small boats on Monday. A further 287 migrants reached the UK on Tuesday.