Iran's official IRNA news agency is reporting that the verdict against a jailed Washington Post reporter has been issued.

The Sunday report quotes judiciary spokesman Gholam Hossein Mohseni Ejehi as saying that Iran's judiciary has issued its verdict against Jason Rezaian.

Ejehi did not elaborate on the details of the verdict but said it can be appealed within 20 days.

Calls to Reziaian's lawyer were not immediately returned on Sunday.

Rezaian, the Post's Tehran bureau chief, is accused of charges including espionage in a closed-door trial that has been widely criticized by the U.S. government and press freedom organizations. He reportedly faces up to 10 to 20 years in prison if convicted.