A man arrested at Glasgow Airport on suspicion of murdering his family eight years ago was detained by mistake, French police sources have said.
Identity checks have shown that the man arrested in Glasgow is not Xavier Dupont de Ligonnes, Reuters quoted a source as saying.
The 58-year-old has been on the run since his wife and four children were found dead in Nantes in 2011
The detained man was stopped in Glasgow after arriving on a flight from Paris.
Police Scotland said they were carrying out checks to determine the man’s identity.
In a statement, they said: “On Friday, 11 October 2019, a man was arrested at Glasgow Airport and remains in police custody in connection with a European Arrest Warrant issued by the French Authorities.
“Inquiries are ongoing to confirm his identity and we continue to liaise with our colleagues in the relevant agencies.”
Mr Dupont de Ligonnes is suspected of murdering his wife Agnès, 48, and his children, Arthur, 21, Thomas, 18, Anne, 16, and Benoît, 13, whose bodies, as well as those of the family’s two dogs, were discovered buried in the garden of the family house in Nantes in 2011.
The murders, known as the “Nantes slaughter”, deeply shocked France at the time.
French prosecutors previously said he killed his victims in a “methodical execution”, firing two bullets from a silenced weapon at close range into their heads, before he rolled them in lime and buried them under cement.
Mr Dupont de Ligonnes reportedly told his teenage children’s private Catholic high school that he had been transferred to a job in Australia.
And he also allegedly told friends he was a US secret agent who was being taken into a witness protection programme.
A large police operation was mounted in the Var region of southern France in January last year after witnesses reported seeing a man resembling him near a monastery.