Joe Biden took oath as 46th President of the United States in Washington on Wednesday amid tight security arrangements.

Kamala Harris was also sworn in as Vice President of the country.

Strict security arrangements were made on the occasion with the deployment of 15,000 National Guard troops and thousands of police officers.

Earlier, US President Donald Trump has made his farewell address before leaving office.

In his inaugural address, Joe Biden said it was a day of "history and hope". "My whole soul is in putting America back together again," he added.

Highlighting a message of unity after the turbulent years of the Trump presidency, he promised to be a leader "for all Americans" - including those who voted against him.