BuzzFeed's Zoe Tillman on clashes between protesters and the police.
Newspaper boxes have been vandalized outside AP's Washington offices.
A window of a Bank of America branch in Washington has been smashed. A witness told Reuters that black-clad activists were responsible.
The motorcade with U.S. president and president-elect and their wives is on its way to the Capitol Building.
CNN split-screen showed ex-President Bill Clinton and his wife, former U.S. Secretary of State Hillary Clinton, entering at the Capitol, at the moment that Trump and Obama emerged from the White House.
Hillary Clinton was the Democratic nominee who lost a bitter presidential race to Trump, winning the popular vote but losing the all-important Electoral College vote.
Trump and Obama have emerged from their White House meeting, and are getting into the presidential limousine to ride to the Capitol together.
AFP from Washington: Stones thrown, windows smashed at anti-Trump protest
BLACK-CLAD ACTIVISTS SMASH WINDOW OF BANK OF AMERICA BRANCH IN MARCH IN WASHINGTON PROTESTING TRUMP INAUGURATION -REUTERS WITNESS
COMING UP: Both President-elect Trump and Vice President-elect Pence will be sworn in in a ceremony on a platform at the west front of the U.S. Capitol Building, with U.S. and foreign dignitaries in attendance and tens of thousands of spectators.
Once the ceremony begins, in less than an hour according to the schedule (around 11:30 a.m. local time), before the swearing-in there will be brief appearances by invited guests including remarks and prayers from religious leaders as well as musical performances by the U.S. Marine band.
The vice president-elect, former Indiana Governor Mike Pence, will be sworn in by Supreme Court Justice Clarence Thomas before the president takes his oath.
The president-elect, Donald J. Trump, will be sworn in by the chief justice of the U.S. Supreme Court, John Roberts Jr.
A view of the crowds gathering at the Capitol for Trump's inauguration.