French officials have made their first interception on the water as part of a new policy aimed at stopping small boats carrying illegal migrants to the UK.

A so-called 'taxi-boat' was boarded by French officers on Saturday on the Aa canal in Gravelines, which is on the Channel coast above Calais.

This follows a change of tactics agreed in November after growing pressure from the UK government to step up interventions.

A photograph of the aftermath of the operation obtained by the BBC shows a number of men - apparently people-smugglers - on an inflatable dinghy with the police launch alongside it. The inflatable was then towed to the dockside.

The French maritime prefecture declined to comment to the BBC, citing an 'ongoing judicial investigation' regarding the small boat.

France agreed to the new tactics at a summit in the UK last July between President Emmanuel Macron and Sir Keir Starmer. Previously, French police had only intervened to stop small boats being prepared for launch on beaches, with at-sea interceptions judged too dangerous.

However, the technique employed by smugglers, involving 'taxi-boats' that pick up migrants further from shore, has proven effective, achieving an 81% success rate in 2025 according to official documents.

The number of migrants who crossed to the UK from France rose last year, but the increases were lower than the peak in 2022.

The July 2025 agreement to initiate on-water interventions faced initial delays due to concerns over the risk to life and potential legal repercussions for officers. These concerns appear to have been alleviated as gendarmes are now allowed to intervene only prior to the 'taxi-boats' taking on passengers.

This approach was utilized in Saturday's operation, where police suspected that the inflatable was on its way to collect migrants, leading to the timely arrest of the men onboard.