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A 31-year-old man has been stabbed to death in Greenwich by two attackers on a moped.

The victim was fatally wounded during a clash in which gunshots were also fired in King William Walk, the Met Police said.

He had first been approached by the pair at 12.15am on Saturday.

The attackers, both male, then fled the scene on the moped and emergency services arrived to find the man with stab injuries.

Despite the efforts of the police and the London Ambulance Service, he was declared dead at the scene.

The victim's next of kin have been informed, police said.

Detectives have launched a murder investigation and said they "retain an open mind as to the motive".

With the killers still at large, anyone with information was urged to call police via 101 or call Crimestoppers on 0800 555 111.