A small migrant boat made an uncontrolled landing on a Kent beach on the evening of Sept. 6, the first unescorted arrival recorded on British soil in nearly three years, prompting an internal Home Office investigation and criticism from opposition politicians.

Kent Police and Border Force officers responded to reports of suspected migrants near Kingsdown, Deal, at about 7:50 p.m. on Saturday. Five people were detained and passed to Border Force for immigration processing, a Home Office spokesperson said, while declining further comment because an internal probe into the incident remains under way.

The uncontrolled landing occurred on one of the busiest days for Channel crossings this year. Official figures showed 1,096 arrivals in a 24-hour period on Saturday, the second time this year that daily arrivals exceeded 1,000 and the 10th such day since the cross-Channel crisis began in 2018. Separately on Saturday, rescue services were alerted to a small-boat incident just after 1 p.m.; one woman was airlifted back to shore and later pronounced dead, Kent Police said. Officers said enquiries are continuing to establish the circumstances of that incident.

Shadow Home Secretary Chris Philp said the uncontrolled landing was evidence of a "full-blown borders crisis," and criticised the Labour government for cancelling the previous government's Rwanda removal plan. "We have not seen uncontrolled landings for years, until now — this is a symptom that Labour cannot even remotely control what is going on across the Channel," he said.

The last recorded uncontrolled landing in the Home Office's records occurred in December 2022. Since then, successive governments have altered the configuration of patrols and command structures in response to fluctuations in small-boat crossings. In 2020, then-Home Secretary Priti Patel appointed a Clandestine Channel Threat Commander. In 2022, the then-prime minister deployed the Royal Navy in patrol roles before military responsibilities were shifted again under a Small Boats Operational Command established by a later Conservative administration.

Under the current Labour government, a reconstituted Border Security Command places the UK Border Force at the centre of intercepting migrant dinghies. Military involvement has been described by officials as largely limited to surveillance support. A monitoring hub at Lydd airport in Kent oversees Army "Watchkeeper" drones operated by the 47th Regiment Royal Artillery; those unmanned systems, funded at about £6 million for this role, use high-definition optical sensors and infrared cameras that commanders say aid detection and tracking of small vessels in the Channel.

Government sources have said the Border Security Command remains responsible for deploying maritime assets and coordinating responses, while investigations are conducted into how the Saturday landing evaded interception.

Prime Minister Keir Starmer faces growing pressure over the crossings. Last week the government reassigned Yvette Cooper from the Home Office to the Foreign Office, in a move critics have linked to dissatisfaction with the administration's handling of Channel migration. Officials have not publicly detailed operational changes intended to prevent uncontrolled landings following the reassignment.

The Home Office and Border Security Command did not provide immediate further comment on whether changes to patrol patterns, surveillance coverage or tasking of vessels contributed to the Saturday failure to intercept the dinghy. Kent Police said it had passed the five people detained on Saturday to Border Force for immigration processing and that enquiries into both the landing and the fatal incident remain ongoing.