A man has been arrested in connection to two pipe bombs placed outside the headquarters of the Republican and Democratic national committees on the eve of the 6 January Capitol riot nearly five years ago.
The arrest was confirmed on Thursday by two sources familiar with the case to BBC's US partner, CBS News. He is expected to face charges in DC federal court later Thursday, although the charges are unclear.
This concludes a long-running manhunt in the case, which involved an extensive investigation and a $500,000 (£375,000) reward.
The pipe bombs were safely deactivated and did not explode.
Officials have not yet commented on the identity of the suspect or what led to the arrest.
Earlier this year, the FBI released CCTV footage of the alleged suspect. It appears to show an individual with a backpack, wearing a light grey hooded sweater, placing something near a bench outside the Democratic National Committee building in Washington. The individual is later shown placing the second bomb.
Both bombs were planted the night before the 6 January riot and were discovered as rioters began to storm the Capitol.
At that time, US senators were meeting in the Capitol to certify the results of the 2020 presidential election, which Joe Biden won, defeating Donald Trump.
While Trump, who was president at the time, addressed a large crowd of supporters at a 'Save America' rally near the White House, he urged them to march 'peacefully' to the Capitol, also making unverified claims of mass voter fraud.
The crowd numbered between 2,000 and 2,500 people, including members of far-right groups such as the Proud Boys and the Oath Keepers. Many were armed.
Hundreds forced their way into the Capitol building through windows and doors, overwhelming police. Law enforcement took almost four hours to restore order.
As the riot began, a passerby discovered the two pipe bombs, according to police statements at the time. The devices reportedly included pipes, wires, kitchen timers, and homemade black powder.
According to a report obtained by CBS News, the bombs had one method of detonation: a 60-minute kitchen timer. For unknown reasons, they ultimately did not explode.
Police had been searching for a suspect ever since.
Many individuals convicted or charged in relation to the riot have been pardoned by Trump earlier this year, shortly after he took office for a second term in January. Pardons or commutations were issued for more than 1,500 people, and Trump ordered the US Department of Justice to drop all pending cases against other suspects.
Trump described the accused and convicted as 'the hostages,' claiming that their lives had been 'destroyed.'
'What they've done to these people is outrageous. There's rarely been anything like it in the history of our country,' he remarked.
