Iran ? Iran’s judiciary ordered a full investigation Monday into the case of an American journalist imprisoned for allegedly spying for the U.S. and allowed the woman’s parents to visit her for the first time since she was sentenced to eight years in prison.

The developments in the case of Roxana Saberi appear to be the latest signs that some senior Iranian officials want to ensure tensions over the case do not derail moves toward a dialogue with the Obama administration to break a 30-year diplomatic deadlock between the two countries.

In Washington, Secretary of State Hillary Rodham Clinton renewed calls for Iran to release Saberi and said she hoped for positive action from the judiciary chief’s investigation order.

Saberi, who was born in the U.S. and grew up in Fargo, N.D., was convicted of espionage last week after a one-day trial behind closed doors.