POLICE investigating the death of Irishman Damien McLaughlin in London have made two further arrests.
A 24-year-old man and a 27-year-old woman were arrested on Wednesday, April 26.
The man was arrested on suspicion of murder and currently remains in custody.
The woman was arrested on suspicion of assisting an offender and currently remains in custody at a north London police station.
Police officers, the London Ambulance Service and London's Air Ambulance attended. Mr McLaughlin was pronounced dead at the scene 45 minutes later.
Mr McLaughlin, 42, who lived in Cheshunt with his wife, was originally from Manorcunningham, in Co. Donegal.
He had come to Britain as a child with his parents and two siblings.
A post-mortem examination held at Haringey Mortuary on April 23, established cause of death as a stab wound to the heart.
The murder investigation is being led by Detective Chief Inspector Larry Smith of the Homicide and Major Crime Command.
Two men have already been charged in connection with the investigation. A 21-year-old man was arrested on April 22 on suspicion of murder.
He has been released from police custody while the investigation continues.