A man has been arrested on suspicion of murder after another man was attacked in a house and died days later in hospital.
A 44-year-old man died on Tuesday after being seriously injured on Irvine Avenue in Boothstown, Salford, at about 20:15 GMT on Sunday, Greater Manchester Police said.
A 22-year-old man is being questioned in police custody.
Detectives are appealing for anyone who was in the area of Irvine Avenue, Leigh Road or Simpson Road on Sunday and has information to come forward.
Det Ch Insp Mark Davis said: “Our deepest condolences are with the victim’s family who have sadly lost a loved one and we are continuing to support them at this time.”
He said residents in Boothstown would “see an increased visibility of officers in the area” as the investigation continued.
“We would like to reassure people that we do not believe there is any wider threat to the community,” he added.