A mammoth clean-up operation took place after millions of people across the UK celebrated the start of 2014 with fireworks, and drinking.
Tube, DLR, tram and some National Rail services in Greater London will run all night on New Year's Eve.
Here is our guide to the displays happening across London over the coming days
The British Transport Police Divisional Commander for London, South and East England has said that police officers were assaulted at last night's New Year's Eve celebrations. Chief Superintendent Paul Brogden wrote on Twitter:
A mammoth clean-up operation has begun after millions of people across the UK celebrated the start of 2014 with fireworks, music and late-night drinking.
The festivities created an estimated 85 tonnes of waste, including up to 15,000 champagne bottles, in central London.
Westminster Council deployed 52 vehicles and 119 members of staff through the night to ensure the streets were cleared for the capital's New Year's Day parade at midday.
Tens of thousands of people came into central London to see in the New Year.
Viewing areas filled up quicker than in previous years, according to the Metropolitan Police with thousands of people arriving early to take in the spectacular firework display which has become a focal point for many to mark the New Years Eve celebrations.
Around 3,800 police officers were reported to have worked to support the event organisers and stewards, along with colleagues from British Transport Police and other emergency services.
As of 4:30am on January 1, there were a total of 100 arrests made by officers working on the policing operation for New Year's Eve.
London's New Year's Eve revellers will be showered with edible confetti and scented bubbles.
Billed as the world's first multi-sensory fireworks display, tonight's event is expected to attract hundreds of thousands of people to the banks of the Thames.
Simon Harris reports on the preparations ahead of the festivities.
After last year's Olympic themed display, spectators of this year's New Year fireworks will get more than they bargained for. Those in close enough proximity will be part of a multi-sensory experience, according to organisers.
You'll be able to hear, smell and even taste parts of the display. There will be fruit flavours and smells combined with the pyrotechnics and fireworks. There will also be a London New Year's Eve fireworks app which will only be available for 24 hours.
A mobile catering van was destroyed on Saturday night during the fireworks display on Blackheath Common.
Two men and a woman suffered from smoke inhalation and burns and were taken to hospital by ambulance. The fire didn’t affect any other catering vans.
Firefighters rushed to the scene and quickly extinguished the blaze. Two gas cylinders were involved in the fire, so crews cooled them down to make them safe as cylinders can explode when exposed to heat.
Two fire engines and ten firefighters attended the incident. The Brigade’s fire investigators are working to establish the cause of the fire.
London Fire Brigade is asking people to cancel their amateur fireworks displays on Friday because of a planned national strike by fire fighters.
Chiefs are advising people to go to organised displays instead.
There's also the traditional transport operation to make those crowds of revellers get into and out of London safely.
Piers Hopkirk reports now on the preparations ahead of tonight's festivities.
Despite the bad weather, up a quarter of a million of people are expected to converge on the capital tonight to welcome in 2013.
Many will head for the banks of the Thames to get the best vantage points for the traditional New Year's fireworks display.
Nick Thatcher spoke to Jim Donald from Jack Morton Worldwide in his report.