The Boston police said that they have arrested three additional suspects in connection with the April 15 marathon bombing case. Three people died and over 260 were injured in bomb blasts. The Boston police posted on their official Twitter account that the authorities have arrested three college students who allegedly helped the 19-year old surviving bomb suspect Dzokhar Tsarnaev. They are said to be college friends of Dzokhar Tsarnaev at the University of Massachusetts Dartmouth.

Boston police suspects

Federal authorities said more details will follow. Dzhokhar Tsarnaev has already been charged with malicious destruction of property and using weapons of mass destruction resulting in the death of three on April 15. His elder brother Tamerlan Tsarnaev, 26, was killed in a firefight with police in Watertown, Massachusetts three days after the bombing case. The two were trying to flee the region. Police say they were also responsible for killing an MIT police officer.

Tamerlan Tsarnaev, the elder of the two, was a legal permanent resident of the United States. They were of Chechen ethnicity. Tamerlan Tsarnaev’s body will be claimed by his relatives as his wife has agreed to release it, reports Associated PressSince his death, Tsarnaev’s body was with the medical examiner’s office in Massachusetts. Tsarnaev had run out of ammunition during a gunfight before his brother could drag his body under a vehicle.

Boston Suspects Trained By Russian Militants?

A security official told the Associated Press that Russian agents had placed the deceased suspect Tamerlan Tsarnaev under surveillance when he visited southern Russia last year. He stayed there for over six months. But he disappeared after police killed a Canadian jihadist.

Law enforcement officials in the United States are trying to find out if Tamerlan Tsarnaev was trained by militants during his six month stay in Dagestan. The Caspian sea province has now become a center of Islamic insurgency.