Boston bomb suspect's condition upgraded in hospital

Dzohkhar Tsarnaev has been charged in his hospital room at Beth Israel Deaconess Medical Center. Credit: FBI

The condition of Boston Marathon bombing suspect Dzohkhar Tsarnaev has been upgraded from "serious" to "fair", the US Attorney's Office has said, according to Reuters.

Read: Boston Marathon suspect could face death penalty


Boston bombs 'remote trigger'

US investigators have revealed the two bombs that went off at the Boston Marathon were detonated with the kind of remote control device used for a toy car.