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.
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An American Airlines flight has been evacuated using emergency slides at London's Heathrow Airport .
The move comes amid a motion of no confidence that was tabled against Labour leader Jeremy Corbyn.
Detectives investigating an assault in Newham have released CCTV footage in a bid to identify the two suspects who attacked a 23-year-old.