A U.S. official on Sunday, December 4, denied an Iranian claim that a U.S. reconnaissance drone aircraft was shot down in eastern Iran. An unnamed U.S official said nothing indicated to Washington that a drone that had crashed in Iran had actually been shot down.

According to Digital Journal, a U.S official said: "There is absolutely no indication up to this point that Iranians shot down this drone."

Iran's military said it shot down a U.S. Army drone inside its territory near the Afghan and Pakistani borders on Sunday, and threatened to retaliate for the violation.

The NATO-led military force in Afghanistan said the drone reportedly shot down by Iran "may" belong to the United States.