Bomber ‘suspect’ seen in video

Investigators believe they have spotted a suspect in the Boston Marathon bombing from security video, a US law enforcement source said last night, but no arrest had yet been made.

Earlier, CNN reported a suspect was in custody, citing Boston and US law enforcement sources, but it later retracted its report. Three Reuters sources also disputed there had been an arrest. Officials later confirmed the arrest report was inaccurate.

The suspect in the video had not yet been identified by name, said two US government officials.