Detectives investigating the death of a father-of-four who was murdered during last year's riots have offered a £20,000 reward for information that leads to the arrest and prosecution of those responsible.
Trevor Ellis was shot in the head following a car chase as looters ran riot through the streets of Croydon, south London, in August last year.
It came after the 26-year-old and his friends became embroiled in a disagreement with a group of around nine people involved in the disorder.
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.