The FBI has stepped up its hunt for a suspect who allegedly planted pipe bombs on the night of the US Capitol Riots that left five people dead.
Officials have released a video of the incident near the Democratic and Republican committee headquarters in Washington and are calling on the public for help.
The bombs, which were later defused by officers, were allegedly placed between 7:30 p.m. and 8:30 p.m. on the night before ex-President Donald Trump's supporters stormed the US Capitol.
More than 300 people have been charged in connection with the deadly January 6 failed insurrection.
But the FBI is yet to to identify the suspect who was said to have planted the bombs the night before.
Officials had previously released photos of a suspect, who can be seen wearing a grey hoodie and black and light-grey Nike Air Max Speed shoes.
Releasing the footage the bureau said in a statement: "The FBI is asking the public to watch the videos of this person.
"You may recognize their gait, body language, or mannerisms. Tips can remain anonymous."
In the footage an individual is seen wearing a face mask and a grey hooded sweatshirt while holding a backpack.
They are seen standing with the bag in a residential area at night before the person places the bag on the ground as a car drives past.
A man is then seen walking past with a dog as the person fidgets next to the bag.
About 12 minutes later the person is seen sat on a bench elsewhere before zipping up the bag, standing up, and walking away.
Then at 8.14pm the individual is spotted holding a bag and walking down an alleyway and then walking in front of the Capitol Hill Club, which is about half a mile walk from the US Capitol.
Officers went on to find pipe bombs and the person in the footage has not yet been identified.
A pro-Trump mob that authorities said included a number of right-wing extremists stormed the Capitol on January 6, interrupting the official certification of President Joe Biden's election victory.
The violence left five people, including a police officer, dead, and left many dozens injured.
Trump was impeached following the bloodshed and was later acquitted in a trial heard at the Senate.
A vote of 57-43 fell short of the two-thirds majority needed to convict the disgraced former president, the only one to be impeached twice.
After the vote, Trump welcomed his acquittal, repeating his tired claims of a "witch hunt" and saying that his movement "has only just begun".
