Shop windows smashed by rioters in Washington
Security forces deployed tear gas as they chased men through the streets of Washington just one hour before official proceedings begin.
Counter protest groups have arrived outside the White House to condemn or celebrate the billionaire businessman becoming president of the United States.
Those on the streets have said they are in the middle of a "riot".
— Cassandra Fairbanks (@CassandraRules) January 20, 2017
Images of smashed shop fronts and cars have begun appearing on social media.
Trump is being inaugurated as the 45th President of the United States in a grand ceremony in Washington DC.
Trump's 35-word swearing-in – happens on a 10,000 square foot specially-built platform in front of the Capitol that holds 1,600 people.
Market analyst says markets are jittery over Trump uncertainty
Obama and Trump leave the Whitehouse together
Hilary and Bill Clinton attend Trump's inauguration
Police on the streets are swarming around protestors after some turned violent
He will be being watched by thousands of security officials, police, FBI agents and will be being covered by snipers.