UPDATE: The Boston Globe is reporting that the city’s Moakley U.S. Courthouse is being evacuated.
UPDATE: Per CNN: “There is conflicting information as to whether someone has been arrested in connection with the Boston Marathon bombings. A federal law enforcement source told CNN’s Fran Townsend that someone was arrested. But later, two senior administration officials and another federal official told Townsend that there had been a misunderstanding among officials and that no one has been arrested.”
The Associated Press and the Boston Globe also reported a suspect was in custody.
An arrest has been made in connection with Monday’s deadly Boston Marathon bombings, according to CNN. The report does not identify who the suspect is, or what his or her motive for the attacks was, but CNN says the person was apprehended based on an analysis of two videos.
Three people were killed and at least 183 were wounded, some critically, when a pair of devices were detonated near the finish line of the marathon.
The breakthrough came from analysis of video from a department store near the site of the second explosion. Video from a Boston television station also contributed to the progress, said the source, who declined to be more specific but called it a significant development.
Earlier, a federal law enforcement source with firsthand knowledge of the investigation told CNN that a lid to a pressure cooker thought to have been used in the bombings had been found on a roof of a building near the scene.
While such clues may move the investigation forward, they did not reveal whether the attack was an act of domestic or foreign terrorism.
“If your experience and your expertise is Middle East terrorism, it has the hallmarks of al Qaeda or a Middle East group,” former FBI Assistant Director Tom Fuentes said. “If your experience is domestic groups and bombings that have occurred here, it has the hallmarks of a domestic terrorist like Eric Rudolph in the 1996 Atlanta Summer Olympics bombings.”