Donald Trump sworn in as 45th US president, in historic power transfer from President Obama
In his inaugural address he vowed to fight for the "forgotten" Americans
Taking aim at Washington elites, he vowed: "Our country will prosper again"
Protesters have smashed windows and clashed with riot police on Washington's streets
According to the Hollywood Reporter, former first daughter Malia Obama is taking up an internship with Hollywood producer Harvey Weinstein, in his New York office. It's reportedly part of her gap year before the 18-year-old goes to Harvard University in the autumn.
Image source, Huw Evans Picture AgencyMalia Obama leaves the State Dining room of the White House
Image source, BBC NewsDonald Trump is in The Beast - the president's armoured car. The parade route is about a mile and a half and is proceeding at walking pace. It's a traditional part of the inauguration pomp and ceremony. Trump will get out and walk the final yards to his new home.
The crowds are 10 deep in places and are chanting Trump's name.
Some in the crowd, who have come to Washington DC from across the US, have been waiting to catch a glimpse of the new president since the early hours.
Image source, BBC NewsMexican President Enrique Pena Nieto has congratulated Donald Trump on his inauguration, tweeting that he would work to improve bilateral ties.
But he also vowed to protect Mexico's national interests in any future dealings with the new US government, stressing he wanted "a respectful dialogue".
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The Talladega Marching Tornadoes are a historically black college marching band that agreed to play for Donald Trump's inauguration, despite intense pressure to bow out.
We asked them why, despite the fierce backlash, they made the trip to Washington DC.
Read our full report here.
Meet the marching band that agreed to play Trump's inauguration
Donald Trump's presidential motorcade is making slow progress down Pennsylvania Avenue to the White House, watched by cheering crowds.
En route, he is passing his hotel, Trump International.
Image source, BBC News
Image source, Getty ImagesUK Prime Minister Theresa May has said Donald Trump is committed to strengthening the so-called special relationship between Britain and the United States, after the new president promised to put "America first" in trade deals.
Following his inaugration address, May, who is keen to seal a swift post-Brexit trade deal with the US, said: "From our conversations to date, I know we are both committed to advancing the special relationship between our two countries and working together for the prosperity and security of people on both sides of the Atlantic.
"I look forward to discussing these issues and more when we meet in Washington."
May is expected to visit Trump in the spring.
Trump inauguration: A few fast facts from the speech
Jason Chaffetz, the Republican congressman who chairs the House Oversight Committee, posted an image online of himself shaking Hillary Clinton's hand.
"So pleased she is not the President," he wrote. "I thanked her for her service and wished her luck."
"The investigation continues," he writes, in reference to his committee's investigation into Clinton's use of a personal email server during her time as Secretary of State.
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Image source, EPAGerman Vice-Chancellor Sigmar Gabriel
World politicians have also reacted to Trump's inauguration speech.
German Vice-Chancellor Sigmar Gabriel said Trump's address had "high nationalistic tones", adding that "we have to prepare for a rough ride".
International Monetary Fund chief Christine Lagarde warned the global economy could suffer devastating consequences if countries started a race to the bottom in taxes, trade and financial regulation.
Here's Trump leading a standing ovation at a Capitol Hill luncheon for Bill and Hillary Clinton.
"I was very, very honoured," he said, when he heard his former bitter rivals were coming.
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Richard Lister
BBC News
Anti-Trump protesters disrupted traffic in central London waving placards and chanting "Hey hey! Ho ho! Donald Trump has got to go."
Bemused shoppers in Oxford Street filmed on camera phones and some joined the marchers. Car and bus drivers blasted their horns, some in irritation and others apparently in support.
This wasn't supposed to happen. The demonstrators were due to march around the small park in front of the US embassy but after assembling, those at the front of the march quickly turned towards the heart of the central London to maximise their protest.
They carried banners warning of climate change disaster and a Trump-inspired nuclear arms race. Others have concerns about US policy which long predate the 45th President.
A man in an orange jump suit and a clown mask has a banner reading "15 years in Guantanamo is no joke".
That's an issue which has now moved from Barack Obama's inbox, to President Trump's.
Image source, PAA demonstration against Trump takes place in Oxford Circus, London
The best of the day's action, in a handy montage...
Donald Trump's inauguration: Story of the day
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Image source, PoolSome troops dressed as soldiers from Revolutionary times
President Trump and Vice-President Pence are now on the steps of Congress, observing as a military parade moves past.
Trump has given the occasional salute to the troops, some of whom are dressed as Revolutionary-era soldiers.
Many commentators today have assumed the red-white-and-blue coat that Trump's senior adviser, Kellyanne Conway, wore was made in tribute to the American flag.
Apparently not.
According to fashion website Net-A-Porter, the Gucci jacket was "inspired by the city of London".
"This coat is tailored from royal-blue, off-white and red wool with a matte finish".
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Some social media users have mocked the design of the £2,900 coat.
Have a look at some of their wittiest work.
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The BBC's Davis Willis says a noisy protest is underway at the junction of 13th and K St in DC. Seems to be a mixture of anarchists, Black Lives Matter activists and other causes. No sign of violence at the moment.
Meanwhile, Richard Spencer, a prominent figure in the alt-right movement, whose members celebrated Trump's election victory with Nazi salutes, says he has been attacked by anti-fascist demonstrators in DC.
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Dr Mike Cornfield, political management expert, says President Trump was "confrontational"
Anti-Trump protests have been staged in Washington and a number of countries around the world.
Image source, AFP/Getty ImagesIn the US capital, there were clashes between anti-Trump protesters and police during the inauguration speech
Image source, ReutersIn Spain's capital Madrid, demonstrators marched with placards depicting Barack Obama with the word "hope" and Donald Trump with "hate"
Image source, AFP/Getty ImagesIn Lima, Peru, demonstrators condemned Trump's stance on women's rights
Image source, AFP/Getty ImagesIn Hong Kong, a protester chained himself to the front gate of the US consulate but was later led away by police
Image source, Getty ImagesMetro ridership for Inauguration Day 2017 is at it's lowest point in years, the Washington Post reports., external
Dan Stessel, a spokesman for the city's public transportation system said they expect to provide about 400,000 rides by the end of the day.
That's beneath the typical weekday ridership of 639,000, he says.
And it's way below Obama's first inauguration, when about 1.1 million people rode the Metro.