Two men in their 40s have been arrested on suspicion of the murder of Ian Tomlin, who was killed in Battersea, south west London.
Police were called at 5.30pm on Wednesday to reports of a group of men fighting at the building on Charlotte Despard Avenue,.
46-year-old Tomlin was found injured and was pronounced dead at the scene at 6.15pm. All the suspects had fled before police arrived.
The Metropolitan Police launched a murder investigation, and said the incident happened in a communal area of the flats.
Peter Gardner, superintendent head of the CID for Wandsworth Police, said the arrests were made following information passed to the police by the public.
Gardner did not say whether the men were residents of the estate or if they knew the victim.
“This is a tragic incident and it’s absolutely senseless,” he said.
“We will do everything within our power to investigate this fully, bring those responsible to justice and to support the family through this devastating time.”