Washington: The surviving Boston bombing suspect is conscious and responding in writing to the US authorities.
Dzhokhar Tsarnaev, 19, was in serious condition, two days after being arrested in Watertown.
His 26-year-old brother, Tamerlan, died in a gun battle with police.
Officials said Dzhokhar is recuperating from a bullet wound in the leg and in the neck, rendering him unable to speak, CBS news reports.
They could not comment on whether or not the second wound was self-inflicted
Dzhokhar remains hospitalized under heavy guard.
According to the report, prosecutors are working on bringing charges but there was no immediate word on when Tsarnaev might be charged and what those charges would be.
The twin bombings killed three people and wounded over 180.