FBI: Tsarnaev in serious condition (video)

He is in hospital, FBI reports. It is not clear whether he has been interrogated. According to previous reports, Dzokhar Tsarnaev gave written evidence.

Tsarnaev was detained in Watertown, Boston, on the night of April 20. He was injured. His elder brother Tamerlan was wounded in a clash with the police and died in hospital earlier.

Two bombs exploded in Boston with a 12-second interval during an international marathon on Monday.  There people were killed (A Chinese citizen and two Americans including an 8-year-old child), 183 were injured.