The Metropolitan Police has issued a new picture of PC Andrew Duncan, who died following a suspected hit-and-run collision in Sutton.
A further two men have been arrested in connection with the crash, after another was remanded in custody accused of causing death by dangerous driving.
More top news
Police are appealing for witnesses after a crash involving a car and three pedestrians in Islington.
Five rugby league legends were immortalised in bronze today outside Wembley Stadium.
Four people have been bailed after a three-year-old girl was shot in the stomach with an air riffle while she played in a park.