A Pentagon official on Wednesday claimed to have discovered classified documents that concern the U.S. withdrawal from Afghanistan five years ago, but the official declined to offer further details. 

Sean Parnell, who leads the Pentagon's special review panel examining the 2021 withdrawal, said in a video statement that his team recovered "highly relevant classified documents" that were "stashed and hidden away in safes where they would not be found." 

Parnell said the material should have been disclosed, and a review his team conducted revealed why someone would try to hide them. He said his team is conducting a thorough review of the evidence and won't accept "incomplete or comfortable answers." Parnell provided no further details about the material. 

Parnell's video referenced the fifth anniversary of the 2021 Abbey Gate bombing, in which a suicide bomber belonging to ISIS-K detonated an explosive device at the Abbey Gate of the airport in Kabul, Afghanistan, killing 13 U.S. service members and approximately 170 Afghan civilians. If or how the uncovered documents connect to the event, Parnell didn't say.

 "You deserve the truth of what happened about what happened in Afghanistan, told fully and told straight," Parnell said.