Plans to get the Met Police water cannon by this summer are moving ahead as planned. Boris Johnson says he will ask Londoners their views on use of the machines "in the most extreme circumstances".
A final decision by London policing authorities over whether to proceed is expected in February. It would then be up the Home Secretary to decide whether to licence use of water cannon which it is hoped will be available for police in London by the summer.
More top news
A teenager has been airlifted to hospital after being stabbed outside a DLR station in south-east London.
By law, the Met Police has a duty to police public land outside grounds - that's costing them £9.3m a season.
John, who began running for Age UK back in the 1980s when he was aged 53, has raised an incredible amount since then - more than £40,000.