North Korea on Thursday reiterated its threat to launch an intercontinental ballistic missile soon after Seoul warned that Pyongyang could test its new missile.

While the sky was overcast with occasional light drizzles, he faced a challenge to the legitimacy of his presidency over the Russian attempts to meddle in the campaign and the fact that he got fewer popular votes than Democratic rival Hillary Clinton.

Just at the time of swearing-in, President-elect broke the first law i.e. he violated Article I, Section 9 of the U.S. Constitution, known as the emoluments clause.

Donald John Trump will be today sworn in as the 45th president of the United States at 12 PM on Friday, a day that will be marked in history for its several ups and downs.

Live Updates: Donald Trump's Presidential Inauguration

At least 16 policemen were killed in a militant attack in the southern Afghanistan province of Kandahar on Friday, an official said.

US bombers struck and destroyed two Islamic State (IS) terror group camps in Libya with initial estimates that over 80 militants were killed, defence officials told CNN.

With only few hours remaining when Donald Trump officially become 45th President of the United States, we must know the Trumps, who will now be known as the new US First Family.

Barack Obama on Thursday wrote: "Throughout these eight years, you have been the source of goodness, resilience, and hope from which I've pulled strength. I've seen neighbours and communities take care of each other during the worst economic crisis of our lifetimes."

About 50 top officials who have been working in outgoing US President Barack Obama's administration will continue serving in those positions for Donald Trump's incoming government, future White House spokesman Sean Spicer said on Thursday.