The president of Chechnya, Alvi Karimov, said the two Boston terror suspects have "no relations" with the republic and suggested the brothers may have "turned bad" while living outside the region:
The people who are suspected of committing crimes in Boston have no relations with Chechnya. The Tsarnaev family moved away from Chechnya many years ago to another region of the Russian Federation, then to Kazakhstan.
So they were not living in Chechnya as adults, and if they turned 'bad', those who brought them up should be held responsible.
Detectives in Boston are looking further afield as they piece together their case against Marathon suspect Dzohkhar Tsarnaev.
The uncle of Boston bombing suspect Tamerlan Tsarnaev described his recent visit to Dagestan in Russia and his great shock at the attacks.
Both men were enrolled in a school in Dagestan, a neighbouring region that was drawn into Chechnya's violence during the 1990s.