The spy trial of American newspaper reporter Jason Rezaian began Tuesday in Iran. The first day of the trial was closed to the public and lasted about two hours.

The state-run IRNA news agency said the trial was being held in a Revolutionary Court, which usually hears cases involving national security.

Iranian officials have not released details of any charges against Mr. Rezaian. The trial is expected to last two to three days.

Mr. Rezaian was arrested last July. He was held for months in an Iranian prison without being charged or permitted to visit with a lawyer.