He was welcomed at the IKIA airport by deputy foreign minister Hassan Ghashghavi along with Amiri's family members including his wife, son and parents.
After the arrival, Amiri said that he was abducted by the central Intelligence Agency (CIA) of US in Jun 2009 from Saudi Arabia and later forcefully transported from Saudi to US by an American military plane.
He said that US forces asked him about Iran's nuclear projects and he had to go through several mental and physical tortures by both American and Israeli interrogators for two months. They also forced him to say that he had come to US voluntarily for disclosing classified information on Iran's military nuclear programs.
Amiri said that he escaped the CIA, came to Washington and took refugee in Pakistani embassy which concerns Iran's diplomatic interests as both states have had no official ties for over three decades.
United States adamantly rejected the accusations and on the contrary, claimed that he provided the information on Iran's nuclear activities to CIA.