Turkey Formally Requests Extradition of Exiled Cleric Fethullah Gulen From US, Prime Minister Says

He's accused by the Turkish government of orchestrating Friday's failed coup.

— -- Turkey has formally requested the extradition of an exiled Muslim cleric from the United States, the Turkish prime minister said today.

Fethullah Gulen, who's Turk, is accused by the Turkish government of orchestrating Friday's failed military coup from his home in the mountains of Pennsylvania.

At today's White House briefing, spokesman Josh Earnest said the United States had received documents related to Gulen's status, but U.S. officials were still reviewing the materials to see whether they qualified as a formal extradition request.

Gulen, a permanent legal U.S. resident, has denied any involvement in the failed coup and issued a statement condemning it.

"Some news reports, and, unfortunately, some public figures, have speculated that the United States in some way supported the coup attempt," the ambassador wrote in a public statement. "This is categorically untrue, and such speculation is harmful to the decades-long friendship between two great nations."

Gulen and Erdogan were once political allies before falling out over corruption allegations leveled at the Turkish president. Since then, Erdogan has frequently accused Gulen, who came to the United States in the late 1990s, of trying to overthrow the Turkish government.

Gulen is believed to have support among some members of the Turkish military. His movement, called Hizmet, which means "service," includes think-tanks, various media enterprises and schools in many countries, including charter schools in the United States.

ABC News' Alex Marquardt, Justin Fishel, and Ali Rogin contributed to this report.