UPDATE: Officials have now confirmed that NO arrests have been made.
CNN's John King cited a local law enforcement official that said "an arrest has been made" Wednesday in connection to Boston's Marathon bombing on Monday.
Another CNN federal source confirmed the arrest and said it was made based on two separate videos. Department store video from a Lord & Taylor in Copley Square shows clear facial recognition of the confirmed suspect in connection to Monday's Boston Marathon bombings that killed three and injured more than 150 civilians.
Law enforcement officials told WBZ in Boston "the person has been taken into custody by federal marshals and will be in court Wednesday afternoon."
The FBI is holding a press conference at 1:30 p.m. and may announce the news then. The Boston Globe reported that officials said they are "very close" in the investigation. The publication noted that the source oft he suspect of the bombing is from the Boston Police Department. The suspect is to be brought to court, according to a law enforcement official.
An official briefed on the investigation said Wednesday that authorities have an image of a suspect carrying - and perhaps dropping - a black bag at the second bombing scene on Boylston Street.
The video is said to be a "clear identification of a suspect," obtained with help from a local TV station. The first arrest followed the identities of the three victims who died from the explosions on Monday.
Ed Davis, police commissioner of the City of Boston, said they 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.