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.
Nearly 100 people were arrested as an estimated quarter of a million people lined the banks of the River Thames as the chimes of Big Ben rang in the new year in the capital. Elsewhere revellers committed a litany of typical night-out offences.
The Metropolitan Police said this morning officers arrested 39 people for drunk and disorderly behaviour, 21 for assault, 16 for affray, six for drug related offences, six for public order offences and four others.
The force had 3,800 officers on duty for fireworks alone, while London Ambulance Service received 1,100 calls between 7pm and midnight, and 469 in the first hour of 2014.
Chief Inspector Robyn Williams said: "Visitors were not put off by the threat of wind and rain and the viewing areas filled up quicker than ever before.
"Officers worked hard, alongside stewards, to keep people safe during the event and ensure that everyone who came into central London was able to make their way home at the end of the night.
"Crowds were good natured and there were no major issues reported to police."
Events attracted party-goers across the country with 80,000 descending on Edinburgh for its famous Hogmanay street party and firework displays in Cardiff and Belfast.
Thousands of revellers in London braved the threat of rain to enjoy what was billed as "the world's first multi-sensory fireworks display", when peach snow and orange-scented bubbles descended on a section of the crowd.
London mayor Boris Johnson said there was "no better way to celebrate the highs of 2013 and the start of an exciting new year" than enjoying "one of the world's most dazzling fireworks displays".
But 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.
Around half a million people are expected to attend the annual pageant, which could be hit by rain and strong winds.
The celebration parade will feature music from around the globe, leaving the Ritz Hotel at noon and winding through Piccadilly, Pall Mall and Trafalgar Square before ending in Parliament Square.