Mayor of London Boris Johnson praised PC Andrew Duncan for his experience and dedication to the Metropolitan Police Service, following his death earlier today.
He said: "PC Duncan was an officer of vast experience who'd dedicated his working life to the Metropolitan Police Service.
"His death is a tragedy and a reminder of the courage and sacrifice shown daily by the men and women who keep London safe.
"My thoughts and those of every Londoner are with Andrew's wife and children at this time."
More top news
Camden Council is evacuating five tower in the Chalcots estate in north London, to allow "urgent fire safety works" to take place.
Scotland Yard said it was taking action under public order laws over the marches "due to concerns of serious public disorder".
The Football Association says it is hoped that the match will raise around £1.25million for the victims.