High level security officials make a survey of the East Front of the Capitol after an announcement of security problems during a rehearsal for the 59th Presidential Inauguration at the U.S. Capitol in Washington, Monday, Jan. 18, 2021. Image Credit: AP

Washington: The US Capitol complex was shut down temporarily on Monday out of an abundance of caution after a small fire broke out nearby, the US Secret Service said, underscoring security jitters days before President-elect Joe Biden's inauguration.

"There is no threat to the public," the Secret Service said in a tweet.

The US Capitol Police said in a statement that, in an abundance of caution following an external security threat near the Capitol, its acting chief ordered a shutdown of the complex.

"There are currently no fires on or within the Capitol campus," the statement said. "Members and staff were advised to shelter in place while the incident is being investigated." The lockdown follows the deadly Jan. 6 attack on the US  Capitol in Washington by Trump supporters, some of whom called for the death of Republican Vice President Mike Pence as he presided over the certification of Democrat Biden's November election victory.

All participants in the rehearsal for Biden's inauguration, were evacuated into the building, and participants were being held in the Capitol rotunda and other indoor areas, according to a Reuters witness. Biden will be sworn in on Wednesday.

The city's fire department posted on Twitter that firefighters put out an outside fire near the Capitol complex.

"There were no injuries," the department said. "This accounts for smoke that many have seen."