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Joe Biden has been sworn in as the 46th president of the United States.
His inauguration was held on Tuesday afternoon UK time amid a backdrop of political unrest and the coronavirus pandemic.
Anger among his supporters swelled over earlier in January when a group stormed the US Capitol building, resulting in the deaths of five people.
Presidents are sworn in during a formal inauguration ceremony held at the start of their new term.
Just before midday in Washington DC, Biden pledged to protect the US constitution in his oath of office, administered by Supreme Court chief justice John Roberts.
Kamala Harris became vice president, having taken her oath minutes prior.
Biden then gave a speech in which he said “democracy has prevailed”.
Usually, an inauguration brings huge crowds to Washington DC, but this year’s was much smaller due to social distancing rules.
There were ongoing security fears following the Capitol riot, while Trump broke with tradition and declined to attend.
At 78, Biden is the oldest person to take the oath, while Harris is the first woman and first Black and Asian-American to become vice president.
Media coverage typically concentrates on a newly-elected president’s first 100 days, and Biden’s will be dominated by a focus on his coronavirus policies and continuing post-election unrest.