Police: 3 More Suspects Arrested In Marathon Bombings

Three men who attended college with the Boston Marathon suspect have been charged in connection with the case.

Three men who attended college with the Boston Marathon bombing suspect removed his backpack from his dorm room at the University of Massachusetts at Dartmouth three days after the attack, according to charges filed Wednesday.

Azamat Tazhayakov and Dias Kadyrbayev are charged with conspiring to obstruct justice. A third man, Robel Phillipos, is charged with making false statements to federal investigators.

The affidavit says Tazhayakov and Kadyrbayev agreed to get rid of the backpack after concluding from news reports that Dzhokhar Tsarnaev was one of the bombers. A court appearance for the three is scheduled for Wednesday afternoon.

All three began attending UMass with Tsarnaev at the same time in 2011, the affidavit says.

Three people were killed and more than 260 injured on April 15 when two bombs exploded near the finish line. The suspect's brother, Tamerlan Tsarnaev, died after a gunfight with police several days later. Dzhokhar Tsarnaev was captured and lies in a prison hospital.

Tazhayakov and Kadyrbayev have been held in jail for more than a week on allegations that they violated their student visas while attending UMass. Linda Cristello, the Boston attorney who represented them at a hearing on the immigration case Wednesday morning, confirmed earlier that they were facing separate federal charges.