A 62-year-old man was arrested on Wednesday on suspicion of murdering his younger brother at a unit in Fife Street in Mong Kok.

Police made the arrest just after 10.30 pm, after receiving a report of fighting.

They entered the unit and found a 60-year-old man lying unconscious on the floor with injuries to his chest.

He was rushed to Kwong Wah Hospital, where he was declared dead about an hour later.

Police also found a knife at the scene.