As revellers were not able to ring in the New Year in the usual way because of the coronavirus pandemic, in seeing off 2020, 2021 was celebrated with a fireworks and light display over London that included tributes to NHS staff as people, instead, were told to stay at home. But the 10-minute show over the Thames was broadcasted at midnight. Edinburgh's traditional Hogmanay street party was cancelled, with videos of a drone display released instead.
The series of videos showed a swarm of 150 lit-up drones over the Scottish Highlands and Edinburgh were released, which organisers said it was the largest drone show ever produced in the UK. Despite the cancellation the Hogmanay celebration - which normally attracts 100,000 people on the city's streets - there were some people who ignored the pleas to stay at home. Crowds of several hundred people gathered at Edinburgh Castle to see in the new year. They sang Auld Lang Syne and danced before eventually dispersing when several police vans and cars pulled on to the castle esplanade.
Much of the UK saw in the new year while under lockdown rules, with about 44 million people in England - or 78% of the population - in tier four, the top level of restrictions. Mainland Scotland, Northern Ireland and Wales are also under lockdown.
On New Year's Eve, Health Secretary Matt Hancock called on people to take "personal responsibility" and stay at home to avoid spreading Covid-19. Light projections lit up the sky over the O2 Arena, in London, including the NHS logo in a heart accompanied by a child's voice saying: "Thank you NHS heroes".
Captain Sir Tom Moore, who raised £33m for the NHS by walking laps of his garden, was also featured in the display, with an image of him shone over the arena.
Mayor of London Sadiq Khan said he was proud of the show, which he said "paid tribute to our NHS heroes and the way that Londoners continue to stand together".
"We showed how our capital and the UK have made huge sacrifices to support one another through these difficult times, and how they will continue to do so as the vaccine is rolled out."
Usually, around 100,000 people pack into the streets around Victoria Embankment to watch the New Year's Eve fireworks. But this year, people were warned not to attend any parties outside their own homes, there were many people around the country who ignored the rules.
Elsewhere, other forces also broke up parties and handed out hundreds of fines. They included Greater Manchester Police, which issued 105 fixed penalty notices at house parties and larger gatherings. And Leicestershire Police had to issue six on-the-spot £10,000 fines to party organisers.
In his New Year's message, the Archbishop of Canterbury will say he saw "reasons to be hopeful for the year ahead" despite the "tremendous pain and sadness" brought by 2020.
The Most Reverend Justin Welby speaks of his experience volunteering as an assistant chaplain at St Thomas' hospital during the pandemic, saying: "Sometimes the most important thing we do is just sit with people, letting them know they are not alone."
In his message, he says: "This crisis has shown us how fragile we are. It has also shown us how to face this fragility. Here at the hospital, hope is there in every hand that's held, and every comforting word that's spoken.
"Up and down the country, it's there in every phone call. Every food parcel or thoughtful card. Every time we wear our masks."