A fourth man has been arrested by Mauritian police investigating the murder of Michaela McAreavey.
He is a member of the security staff at the four-star Legends Hotel, police on the island confirmed.
Yesterday around 3,000 people attended the funeral of the Irish language teacher, 27, who was strangled a week ago on her honeymoon.
A spokesman for police in Mauritius confirmed a further person is in custody in connection with the murder.
He told the BBC: "He is one of the persons who was engaged in security work."
Three men, all staff at the luxury hotel, have been charged in connection with the killing, thought to have happened as newlywed Mrs McAreavey disturbed a burglary in her room.
Room attendant Avinash Treebhoowoon, 29, and floor superviser Sandip Moneea, 41, have been charged with murder, and room attendant Raj Theekoy, 33, with conspiracy to murder.
They are due to appear in court tomorrow.
Mrs McAreavey, from near Ballygawley, Co Tyrone, was the daughter of Tyrone GAA (Gaelic Athletic Association) manager Mickey Harte. Yesterday her father and husband John carried her coffin as the crowd walked in silence to the church where she was married last month.
She was buried in her wedding dress.
Irish President Mary McAleese was among dignitaries at Requiem Mass.
Catholic Bishop of Dromore John McAreavey, the widower's uncle, married the couple and delivered the address.
Mr Harte, Michaela's mother Marian, and brothers Mark, Michael and Mattie led mourners at the compact country church after one of the main roads running through Tyrone was closed for the funeral procession.
Symbols representing Mrs McAreavey's beauty, faith, love of family and the Irish language were presented at the beginning of the service.
Primate of the Catholic Church in Ireland Archbishop Sean Brady also took part.Reuse content