A 31-year-old man has been stabbed to death by two attackers on a moped during an early-morning altercation in south-east London, police said.
The victim was fatally wounded during a clash in which shots were also fired in King William Walk in the centre of Greenwich, the police said.
He had first been approached by the pair at 12.15am on Saturday.
The assailants, both male, then fled the scene on the moped and emergency services arrived to find the man with stab injuries. Paramedics tried to revive the man but 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”.