A man has been arrested over a plot to bomb Metro stations in the US capital.
Farooque Ahmed, 34, of Ashburn in the state of 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 Metro stations in Arlington, on the outskirts of Washington DC, on four occasions.
Read More: http://www.bbc.co.uk/news/world-us-canada-11610328