IRGC says the US video of Sunday's incident in Hormuz Strait involving Iran patrol boats and US ships is archive footage and the audio is fake.

A member of the Navy Forces of the Islamic Revolution Guards Corps (IRGC) told Press TV on Wednesday that the footage released by the US Navy had been compiled using file pictures and the audio had been fabricated.

Earlier Iran's Foreign Ministry Spokesman Mohammad-Ali Hosseini said the incident was a normal identification request by the Iranian side.

Hosseini explained that exchanging messages to identify ships in the Persian Gulf is routine.

Washington earlier claimed that IRGC speedboats harassed three US Navy warships in the Strait of Hormuz on Sunday.

The US Navy later released footage purportedly showing Iranian boats menacing US Navy ships in the Persian Gulf.

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