"This plane had taken off from Iraq and was filming border areas," a report in the hardline Jumhuri Eslami newspaper said.

It added the Islamic Republic "officials have obtained information from the plane system and recordings", without giving any further details.

US publications reported over the weekend that the White House is studying options for military strikes against Iran's nuclear facilities to pressure Tehran to abandon its controversial nuclear program.

The US media have reported that the US military has been secretly flying surveillance drones over Iran since 2004 using radar, video, still photography and air filters to detect traces of nuclear activity not accessible to satellites.

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