Boston bomb suspects 'were framed', their father believes
19 April 2013 Last updated at 19:06 BST
The two brothers who are suspected of carrying out the Boston Marathon bombings are ethnic Chechens from the troubled Southern Caucasus region of Russia.
Dzhokhar and Tamerlan Tsarnaev moved to the United States in 2001. Their father who now lives in Dagestan, a republic bordering Chechnya, believes that his sons have been framed.
Daniel Sandford reports from Moscow.