A video published by the agency, which could not be immediately verified, shows a light blue coloured drone with the name "Ababil III" written on the wings in Farsi and Latin script.
It is seen taking off from a desert base near the sea, as the soundtrack of an action movie plays in the background, and flies over first an escort ship and then an aircraft carrier with fighter planes parked on the deck.
The Tasnim report comes nearly three weeks after the United States branded the Guards as a "foreign terrorist organisation" and added it to a blacklist.
Iran swiftly retaliated by declaring US troops "terrorists".
The Guards is an ideological military force that works in parallel to the regular army.
It naval arm is charged with the defence and the security of the Gulf, including the strategic Strait of Hormuz, a global shipping route where American forces routinely pass.
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