Boston remains virtually paralyzed, as thousands of officers continue their search for the 19-year-old college student wanted in the Boston Marathon bombings.

Dzhokhar Tsarnaev has been on the run since last night, when he escaped from police during a shootout that killed his older brother and alleged accomplice in Monday’s terrorist attack.

The two reportedly shot and killed an M-I-T campus security officer before carjacking a vehicle and throwing explosives at the police chasing them.

Boston and the surrounding area has been in lockdown since the violence erupted last night, prompting police to tell residents to stay inside with doors and windows locked.

Public transit, train and bus service has been suspended all day.