The Home Office also said on Sunday that there had been nearly 300 arrests of smuggling gang members last year, as well as the seizure of more than 1,100 small boats and engines.
It said that, if the equipment seized by the NCA had been used, it could have helped 72,000 more people come illegally to the UK. The has been unable to independently verify this claim.
“Clearly, progress is being made, but we’re not complacent,” Burnham commented.
The number of migrants who have arrived in the UK on small boats since Burnham became PM a fortnight ago surpassed 2,000 after 326 people crossed the English Channel on Saturday.
More people attempt the potentially perilous crossing in the summer when conditions are better, and Home Office figures show small boat crossings so far this year are down around 43% compared to the same period in 2025.
Small boat crossings have become the most common way for people to be detected entering the UK illegally since 2020, and the issue has become a lightning rod in the wider debate over immigration.
The number of small boats crossing the Channel have been on a downward trend since it peaked in 2022, Home Office figures show.
In May, the Office for National Statistics (ONS) revealed that net migration to the UK fell to 171,000 last year – almost half the number seen in 2024, and the lowest level since 2012.
The drop has been attributed to fewer people arriving from outside the EU for work and study.