Two men have been arrested following the murder of a 55-year-old man in west Belfast on Sunday.
Relatives found Seamus Holland lying on the floor of his home in Upton Court.
He had sustained injuries to his head and face. He was taken to hospital by ambulance, but died at 1325 GMT on Sunday.
Police said on Monday they had arrested a 29-year-old man and an 18-year-old man in west Belfast.
Earlier, senior investigating officer, detective chief inspector Debbie McMaster, said police were working on a "definite line of inquiry".
"However, we are appealing for information that could help us to piece together Seamus' last movements before he was killed," she said.
"We want to speak to anyone who was in the area of Upton Court and Norfolk Grove in the early hours of Sunday morning and saw or heard anything untoward, perhaps an argument or a physical confrontation."