(Boston, MA) -- A bomb threat is forcing a federal courthouse in Boston to close for the day. It comes after speculation swirled about a possible arrest in the Boston Marathon bombing. Attorneys, staffers and members of the media were told to leave the scene. No device was found. Boston Police and the FBI both refuted reports of the arrest.
Federal courthouse evacuated;hundreds outside. People are being pushed back from building. Coast Guard and police boats in water.— The Boston Globe (@BostonGlobe) April 17, 2013