TEHRAN, Iran (AP) – Iranian state television is announced that the government has freed four dual-nationality prisoners.

The report did not identify the prisoners. But a source close to Iran’s judiciary is telling The Associated Press that four Iranian-Americans have been freed, including Washington Post bureau chief Jason Rezaian.

The source identified the others as Amir Hekmati, Saeed Abedini and Siamak Namazi.

The source spoke on condition of anonymity because he was not authorized to speak to the media. He said the four were freed Saturday in exchange for the release of seven Iranians held in U.S. prisons. He didn’t name the Iranians but said the seven have already arrived in Tehran.

He says “authorities at the top had agreed to free the four Iranian-Americans only after the Iranian prisoners land in Tehran.”