Police say a 28-year-old man has been arrested in South Yorkshire on suspicion of murder in the Ann Widdecombe investigation.
"The suspect, who is a white British national, is now in police custody," a statement from Devon and Cornwall police says.
Widdecombe, a former Conservative minister turned Reform UK justice spokesperson, was found with serious injuries at her home in Haytor, Devon at 11:40 BST on Thursday after being attacked almost 24 hours earlier.
Police earlier arrested a man, 26, on suspicion of murder before he was released on Saturday.
This breaking news story is being updated and more details will be published shortly. Please refresh the page for the fullest version.
You can receive Breaking News on a smartphone or tablet via the BBC News App. You can also follow @BBCBreaking on X to get the latest alerts.
