The move has come after a recent spike in attempted crossings of the English Channel by predominantly Iranian migrants.
On Tuesday, two men were picked up in St Margret’s bay, Kent at 3pm, having crossed the world’s busiest shipping lane in nothing more than a small dinghy in broad daylight.
They presented themselves as Iranian, and were taken into custody by border force agents.
On Wednesday, four men who said they were Iranian were picked up by the side of the road in Lincolnshire, having seemingly overshot the Kent coastline.
Lincolnshire Police said: “The four men aged 30, 29, and two aged 31, were arrested by officers in the Roman Bank area of Mablethorpe at around 7.30pm on December 4. “It was reported these men had arrived by boat.”
In France, there was activity too.