Anzar Tsamaev, the father of the Boston Marathon bombing suspects, spoke briefly to the media today to say he could not believe his sons were guilty of what they have been accused of.
Speaking from inside his car in Makhachkala, Dagestan, he told CNN: "My sons never did anything."
He also said he was planning to travel to America.
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.