The trial in Iran of jailed Washington Post reporter Jason Rezaian will be closed to the public when it starts on Tuesday, his brother said on Monday.

Rezaian, who is Iranian-American and faces unspecified charges, will be in Revolutionary Court with only his attorney, and family members are excluded, his brother Ali Rezaian told Reuters Television.

Jason Rezaian, the Post's Tehran bureau chief, has been in Tehran's Evin prison since his arrest in July. Iran has not elaborated on the charges, but the Post has said he was charged with espionage.