A surveillance photo released by the FBI shows a person in Washington, U.S., January 6, 2021. The FBI issued a notice, which features this surveillance photo, requesting information on person(s) responsible for pipe bombs left at the Republican National Committee (RNC) and Democratic National Committee (DNC) headquarters.

FBI | Reuters

The FBI on Thursday morning arrested a suspect believed to have planted pipe bombs outside the Republican and Democratic Party headquarters prior to the Jan. 6, 2021, Capitol riot, MS NOW reported.

The arrest is a massive breakthrough in the five-year investigation over who placed the bombs, which did not detonate.

The suspect has been charged with setting the bombs by the parties’ headquarters in Washington, D.C., four people with knowledge of the development told MS NOW.

The FBI did not immediately respond to CNBC’s request for comment.

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