May 15 (UPI) — The FBI is offering a reward for information leading to the arrest of a former Air Force counterintelligence specialist who defected to Iran in 2013.

Monica Elfriede Witt, 47, of El Paso, Texas, is accused of spying for Iran. She was indicted in February 2019 by a federal grand jury in Washington, D.C., on espionage charges. The charges allege she transmitted classified defense information to Iran.

Witt served in the military between 1997 and 2008 before working as a U.S. government contractor until 2010. She had access to top secret information, including the true names of Americans working undercover, an FBI press release said.

She “allegedly betrayed her oath to the Constitution” by “defecting to Iran and providing the Iranian regime National Defense Information and likely continues to support their nefarious activities,” said Daniel Wierzbicki, special agent in charge of the FBI Washington Field Office’s Counterintelligence and Cyber Division.

“The FBI has not forgotten and believes that during this critical moment in Iran’s history, there is someone who knows something about her whereabouts,” he added.

The press release said that “Witt allegedly intentionally provided information endangering U.S. personnel and their families stationed abroad. She also allegedly conducted research on behalf of the Iranian regime to allow them to target her former colleagues in the U.S. government.”