CBS News senior correspondent John Miller said there is “an individual in custody,” a Saudi national who was near the scene of the blast.
Miller said a civilian claims the person was acting suspiciously and chased him down and tackled him after the explosions.
The man is said to be cooperating with investigators and denies any involvement.
While unconfirmed by authorities, this jibes with an earlier report by The New York Post:
Investigators have a suspect — a Saudi Arabian national — in the horrific Boston Marathon bombings, The Post has learned.
Law enforcement sources said the 20-year-old suspect was under guard at an undisclosed Boston hospital.
Fox News reported that the suspect suffered severe burns.
It was not immediately clear why the man was hospitalized and whether he was injured in the attack or in his apprehension.
The man was caught less than two hours after the 2:50 p.m. bombing on the finish line of the race, in the heart of Boston...
In addition, Boston police have surveillance video of someone bringing multiple backpacks to the blast site, according to CBS News.
To be clear, this is preliminary information. Our heartfelt thoughts and prayers go out to those impacted by this terrorist attack.