A man has been arrested over a plot to bomb subway stations in the US capital.
Farooque Ahmed, 34, of Ashburn, Virginia was conspiring with people he believed were from al-Qaeda, the Department of Justice said.
Mr Ahmed was taken into custody on Wednesday morning. If convicted he faces up to 50 years in prison.
The suspect allegedly conducted surveillance of a metro station in Arlington, on the outskirts of Washington, DC, on four occasions.
“It’s chilling that a man from Ashburn is accused of casing rail stations with the goal of killing as many Metro riders as possible through simultaneous bomb attacks,” said US attorney Neil MacBride.
“Today’s arrest highlights the terrorism threat that exists in northern Virginia and our ability to find those seeking to harm US citizens and neutralise them before they can act.”
Officials said the public were never in danger during the investigation and that they had been aware of Mr Ahmed since the beginning.
Mr Ahmed, who was born in Pakistan, has been indicted on three counts.
These are attempting to provide material support to a designated terrorist organisation, collecting information to assist in planning a terrorist attack on a transit facility, and attempting to provide material support to help carry out multiple bombings.
And again: another Muslim wants to bomb whatever place in the name of Islam. Why Muslim groups doesn’t call him an “Islamophobe“? Because this man really has a phobia of Islam to kill in its name. Or hasn’t he?