NBC News confirms that three more people have been arrested in the Boston marathon investigation. The three were roommates of the younger brother at U Mass Dartmouth and are accused of aiding the alleged bomber by disposing of evidence from his college dorm room. They are not suspected of having a role in the bombings.

The Boston Police also issued a statement saying there is no danger to the public because of these arrests. According to the reports, these three have been under surveillance by the FBI for the last ten days.



3 college roommates of Boston Marathon bombing suspect in custody: sources - U.S. News