Friends of Boston marathon bombing suspect charged

Two college friends of suspected Boston Marathon bomber Dzhokhar Tsarnaev have been indicted for allegedly trying to thwart investigators by throwing away fireworks and other items they found in Tsarnaev's dorm room the day before his capture.

Authorities later discovered the fireworks in a New Bedford landfill, the indictment says.

Dias Kadyrbayev and Azamat Tazhayakov, both 19 and nationals of Kazakhstan, face charges of conspiracy to obstruct justice. The two, who were in the US attending college and shared an apartment, have been detained since they were charged in a criminal complaint in May.

If convicted, they face up to 20 years in prison.

Tsarnaev, 20, is accused of carrying out the April 15 blasts at the Boston Marathon that killed three people and injured more than 260. He was captured on April 19 in the Boston suburb of Watertown, after he was found hiding in a boat in a backyard, hours after a shoot-out with police. He's pleaded not guilty.