FBI released images to its agents of two Boston bombing "suspects" that have since went viral on the Web following a reported identification thanks to a security video and cellphone records, according to Daily Mail.

CCTV video caught a suspect planting the second of the two explosives that went off on Monday at the Boston Marathon. The footage, obtained by the FBI, shows the person in question placing a bag near the Lord and Taylor department store while talking on a cellphone, only moments before the two bombs went off killing three and injuring more than 150 people.

The man has not been identified to the public but he is also spotted in still images using his phone at the exact moment that the first explosion detonated 100 yards away on Boylston Street, and 12 seconds before the second blast close to where he was standing. The video has not been released to the public.

In the video the suspect is wearing a black jacket and a grey hooded sweatshirt. He had a white or off-color-white baseball cap on backwards.

Pictures were also released of a second potential suspect who is seen fleeing the site of one of the blasts as everyone around him covers their ears from the impact, according to the news report. He is dressed in all black and his pants are shredded, perhaps from the blast. He looks from left to right before going toward the area where members of the public were aiding the injured. He was shown walking toward a mail box, dropping a package inside and walking away.

The FBI sent out the images to law enforcement agencies in an effort to get help identifying the two men.

VIEW ALL THE IMAGES HERE.

Ed Davis, police commissioner of the City of Boston, said at a press conference on Tuesday that investigators are working on "the most complex crime scene" ever in the history of their department. Monday's bombing in Boston was the first deadly bombing on U.S. soil since the Sept. 11, 2001 attack.