A man and woman were arrested yesterday on suspicion of murdering a mother and her three children.
Uzma Arshad, aged 32, was bludgeoned to death along with sons Adam and Abbas, aged 11 and eight, and six-year-old daughter Henna.
All four died of head injuries, it was confirmed yesterday. They were found on Sunday at the family home in Cheadle Hulme, Stockport, where they had lain for weeks.
Detectives from Greater Manchester Police are continuing to hunt 36-year-old Rahan Arshad, the husband and father of the victims, who is believed to have fled the country.
Mr Arshad, whose BMW was found at Heathrow Airport, left the UK on around July 29. The British-born taxi-driver may have gone to Pakistan, from where his family originate.
Detectives arrested a 35-year-old woman and 40-year-old man on suspicion of murder yesterday.
The force refused to confirm or deny that the pair were a couple, or even lived at the same address, although they said both come from the Burnage area of Manchester.
A smart Victorian semi-detached house on Grangethorpe Drive, Burnage, was sealed off and guarded by police officers yesterday as part of the inquiry.
Neighbours said it belonged to a married Asian couple, who have four children.