Police have reportedly taken three classmates of Dzhokhar Tsarnaev into custody for questioning, but are stressing that they are not considered to be suspects at this time.
Authorities arrested the three students to find out whether bomb-making materials were taken from Tsarnaev's dorm room at University of Massachusetts Dartmouth just after the bombings. They were all roommates of the accused bomber; two were reportedly arrested several days ago, while the other was taken in this morning.
The students have apparently been under close FBI scrutiny for two weeks and will attend a court hearing later today. They are expected to face charges of obstruction of justice, as it is believed they aided Tsarnaev after the bombings. Authorities say they have no evidence at this time that there is a danger to the public at large.
"Please be advised that there is no threat to public safety," the Boston Police said in a statement.