Remains of a human leg have been found in a lake in Dagenham, police have said.
Police were called to White Hart Lakes, near Chase Road after a member of the public reported seeing an item floating in the water.
Initial indications revealed that the item is part of a human leg but further forensic analysis is being conducted.
Police investigating the disappearance of Neil Buchel, 39, of Dagenham, are aware of the discovery and have informed his family although officers said it was too early to say whether the find is linked.
More top news
The 24-year-old was unarmed and the incident is not being treated as terror-related.
Some platforms have been taken out of service with disruption expected to continue until the end of the day.
The Met Office has extended its weather warnings for snow and ice to cover vast swathes of the country, including London and the South East.