Two women have been stabbed in an East London park in separate attacks, less than 3 weeks apart.
Police are warning the public to be vigilant after the women were assaulted in Wapping Woods.
As Nick Thatcher reports, detectives are linking the incidents.
More top news
Londoners who have received new electronic gadgets for Christmas are being advised to take simple steps to protect them from thieves.
The Boxing Day sales got off to a flying start with shops reporting a surge in business during the first hour of trading.
Bus strikes are planned for Monday 29 December and Monday 5 January.