Boston Marathon bomb scene pictures taken by investigators show the remains of an explosive device
Boston Marathon bomb scene pictures taken by investigators show the remains of an explosive device (Reuters)

A suspect in the Boston Marathon bombings has been arrested and is set to be taken to court, law enforcement officials have said.

US authorities have made a clear identification of a potential suspect in the Boston bombings at the marathon finishing line from videos taken at a department store and TV station, according to CNN.

Investigators have a picture of a suspect carrying, and perhaps dropping, a black bag at the second bombing scene, the Boston Globe confirmed. The video footage shows a clear picture of the suspect, including the face, according to CNN chief national reporter John King.

A law enforcement official quoted by AP said that an arrest is imminent in the Boston bombings' case and the suspect is to be brought to court.

An official said a CCTV camera at Lord & Taylor department store, located directly across the street, has provided clear video of the area. The official announcement is expected later on Wednesday, according to Reuters.

"The camera from Lord & Taylor is the best source of video so far," Dot Joyce, a spokeswoman for Boston Mayor Thomas M. Menino, told the Boston Globe "All I know is that they are making progress."

Earlier reports by the American broadcaster said that "substantial progress" had been made in the criminal investigation into Monday's marathon bombings.

CORRECTION: FBI officials have dismissed CNN reports that a suspect had been taken into custody.