Man arrested in connection with pipe bombs placed before US Capitol riot

This image shows part of a Seeking Information notice released by the Federal Bureau of Investigation regarding pipe bombs planted outside offices of the Democratic and Republican national committees (FBI/PA)

The FBI made an arrest in its nearly five-year-old investigation into who placed pipe bombs in Washington on the eve of the January 6 2021, riot at the US Capitol, a law enforcement official said.

The arrest marks the first time investigators have settled on a suspect in an act that had long vexed law enforcement, spawned a multitude of conspiracy theories and remained an enduring mystery in the shadow of the dark chapter of American history that is the violent Capitol siege.