Police in Northern Ireland have launched a murder investigation after a man died following a stabbing in west Belfast last night.

A man in his 30s has been arrested.

Police received a report about a fight at a property in the Twinbrook area around 8.15pm.

When emergency services arrived they found a man with stab wounds lying outside a house in Mulberry Park.

He was pronounced dead at the scene.

The victim is believed to have been involved in a fight with a man on a bus a short time before the stabbing incident.

The fight is said to have continued inside and outside the house, with a number of young children playing in the street witnessing what happened.

The PSNI says it is not seeking anyone else in connection with the killing.