Counter-terrorism police are now leading the investigation into the death of former Conservative minister Ann Widdecombe, after new information and evidence emerged.

A 28-year-old man, originally arrested on suspicion of murder, has been re-arrested on suspicion of commission, preparation, or instigation of acts of terrorism. The suspect, from Rotherham, South Yorkshire, was not known to the government's Prevent anti-terror scheme, Home Secretary Shabana Mahmood confirmed.

Widdecombe, 78, a former Conservative minister and Reform UK spokeswoman, was found dead at her home in Devon on Thursday with serious injuries. The manhunt following her death led to the suspect's arrest on Saturday evening. Counter Terrorism Policing South East stated that new information had come to light during a dynamic and complex investigation.

National Counter Terrorism Policing head Laurence Taylor said the new arrest was built on progress made by Devon and Cornwall Police, and that they were working to establish the motivation for the attack. He urged anyone with information to share it with the police.

CCTV footage emerged appearing to show the suspect getting into a red vehicle in Rotherham hours before Widdecombe is believed to have been attacked. The footage, time-stamped Wednesday morning, shows the man with a long object protruding from his pocket. The distance between Widdecombe's home in Devon and Rotherham is approximately 270 miles.

Police were seen at a property in Rotherham believed to be connected to the investigation, which was cordoned off. Neighbours reported seeing armed police enter the house and apprehend the suspect, with one mentioning a red car being taken away by police.

Home Secretary Shabana Mahmood paid tribute to Widdecombe in the House of Commons, describing her as forthright and fearless. She noted that the death raised questions about the security of those in public life and announced that police intended to issue guidance to MPs on safety soon.

The investigation continues as counter-terrorism officers work to understand the full circumstances and motivation behind the attack on Ann Widdecombe.