A U.S. drone crashed on Saturday in North Waziristan, not far from the Afghan border, Pakistan intelligence officials said, while Taliban militants said they had shot it down.

Taliban militants led by Hafiz Gul Bahadur said they had collected wreckage of the destroyed drone and would provide its pictures to the media on Sunday.

“The drone today in Machikhel was flying at low altitude and our fighters fired at and shot it down,” a local commander of the Taliban said. “We have trained people for such type of job.”

It is impossible to verify the militants’ account and a U.S. official in Washington denied the Taliban had shot down the drone and declined further comment. The CIA, which runs the drone campaign, also declined to comment.

Pakistani security officials said they did not know what caused the drone to crash.

“A drone aircraft was seen going down in Machikhel and flames were seen,” a Pakistani intelligence official said.

“We don’t know what caused it to go down. We are investigating.”

Another official said the drone had gone down in an area controlled by militants, about 30 km (20 miles) from the Afghan border.

“The local Taliban have the wreckage,” he said.

The local Taliban commander said his men had been collecting the wreckage when the Pakistani army showed up and chased them off.

“We got hold of half of the wreckage and were looking for the remaining parts when the Pakistan army troops arrived there and then we decided to leave. The troops fired heavy search lights and are looking for wreckage of the drone,” he said.

A security official near the site of the wreck said two of the drone’s missiles exploded when it crashed, but no one was injured.

He said the Pakistanis stopped the search operation because U.S. drones were still in the area and they feared they would be attacked.

READ MORE: REUTERS