1 of 2 | Debra Tice (R), mother of Austin Tice, speaks beside the National Press Club President Emily Wilkins during a news briefing in Washington, D.C., on May 3, 2024, about the status of the missing U.S. journalist. File photo by Michael Reynolds/EPA-EFE

June 2 (UPI) -- Missing American journalist Austin Tice was imprisoned by the regime of the since-deposed Syrian President Bashar al-Assad in 2012 with his whereabouts now not known, according to top secret intelligence files uncovered by the BBC.

Former Syrian officials also have confirmed Tice's detention to the BBC. The material was part of a BBC investigation more than one year ago for a Radio 4 podcast series in accompanying a Syrian investigator to an intelligence facility.

The Assad regime had denied they had imprisoned him, and didn't know where he was.

The U.S. government believes he had been held by the Syrian government.