There is no independent corroboration of the latest Iranian claims.
The Revolutionary Guard commander said that after shooting down the planes Iran had copied them and produced them in mass numbers through "reverse engineering."
In January 2007, Iranian MP Seyed Nezam Mola Hoveizeh told FARS that Iran had shot down a spy drone of the US army that was trying to cross the borders.
"Many" other drones have been shot down over an unspecified period of time, the Fars news agency quoted him as saying.
The head of the Revolutionary Guards' air force wing, Amir Ali Hajizadeh, produced no evidence to support the report.
"Americans send such spy drones to the region every now and then," the lawmaker further pointed out.
He said this was the first time news of the incidents had been reported.
The drones were mainly being used in Iraq and Afghanistan but "some violations against our soil" had also occurred, the commander said.
The drones were mainly being used in Iraq and Afghanistan but "some violations against our soil" had also occurred, the commander said.
This video shows the potential collateral damage from drone attacks in an urban environment like Iraq and Pakistan.
