Counter-terrorism police have reopened an investigation into an incident at Nigel Farage's south London home, the BBC has learned. The inquiry is understood to be connected to the ongoing investigation into the killing of former MP Ann Widdecombe.

The incident at Mr. Farage's residence, described by the Reform UK leader as a lit incendiary device pushed through his letterbox, occurred in April 2025. Counter Terrorism Policing (CTP) London confirmed it is reviewing an attempted burglary at a property as part of the Widdecombe murder investigation, but has not explicitly confirmed the address was Mr. Farage's or detailed the specific link.

Police at the time reported that damage was sustained to a door but no items were taken. Both CTP London and the Metropolitan Police were involved in the initial inquiries, which concluded without any arrests and the case being closed. However, CTP London announced on Friday that a new line of inquiry had been identified which was not previously pursued.

Furthermore, CTP London has referred itself to the Independent Office for Police Conduct (IOPC) regarding the initial handling of the investigation into the incident at Mr. Farage's home. The IOPC stated it would independently investigate the conduct of a CTP London staff member following a referral concerning an alleged failure to identify and pursue a line of inquiry related to the attempted burglary.

Ann Widdecombe, a 78-year-old former Conservative minister and Reform UK spokeswoman, was found dead at her home in Devon last month with serious injuries. Joshua Kerry, from Rotherham, has since been charged with her murder. Mr. Kerry was initially arrested on suspicion of murder on July 11, and later additionally arrested on suspicion of the commission, preparation, or instigation of acts of terrorism on July 13.

Widdecombe had a 23-year parliamentary career as the Conservative MP for Maidstone and was appointed to ministerial positions under Sir John Major's government in the 1990s. The reopening of the investigation into the incident at Mr. Farage's home suggests potential new evidence or a re-evaluation of existing information within the broader context of the Widdecombe murder inquiry.

CTP London has stated that victims and families involved in both investigations have been updated and that support continues to be provided. The watchdog's investigation will examine the conduct of the CTP London staff member in relation to the alleged oversight in pursuing the attempted burglary inquiry.

Details regarding the exact nature of the alleged failure and the specific connection between the incident at Mr. Farage's home and the Widdecombe murder remain under investigation, with authorities indicating further updates will be provided as the inquiries progress.