Simpson-Kent, who is wanted for questioning over the deaths of the EastEnders actress and their two sons, is also being hunted by Ghanaian police
British detectives are believed to be travelling to Ghana as the hunt for murder suspect Arthur Simpson-Kent was stepped up.
The search is focusing on Cape Coast, a fishing port in the West African nation.
Ghanaian police began formally looking for Simpson-Kent, wanted for questioning over the deaths of his partner, EastEnders actress Sian Blake and their sons, Zachary, eight, and Amon, four.
A source at the Criminal Investigations Department in Ghana said it received a request for help via Interpol over the murder probe being led by Scotland Yard.
Simpson-Kent, 48, has connections to Cape Coast. The source said local officers are also hunting for him in the capital Accra where he is thought to have family.
Scotland Yard refused to confirm whether it is searching for him abroad. The Independent Police Complaints Commission is probing the Met’s handling of the case after Sian, 43, and her boys were reported missing.
IPCC Associate Commissioner Tom Milsom said: “We will conduct a thorough investigation into how police responded to the concerns for their welfare and their disappearance.”
Sian, who played Frankie Pierre in EastEnders in the 1990s, and her sons were last seen on December 13.
Read more: Sian Blake murder: Family urge Arthur Simpson-Kent to “Come home and face GOD”
Simpson-Kent was quizzed by police at the family home in Erith, South East London, three days later. He fled Britain on December 19, flying to Ghana via Glasgow
The bodies were found buried in the back garden of the home on Monday.
Ghanaian police say they were notified about the case after a picture emerged of the fugitive at Accra’s international airport.
Sian’s relative Garvin Golding, 72, of Milton Keynes, Bucks, said: “This is a very difficult time. I can’t really put into words what I am feeling.”