Iran's Revolutionary Guards on Thursday denied its naval forces had test-fired rockets close to a US aircraft carrier in the strategically important Strait of Hormuz.

"The Guards' naval force had no exercise in the past week when the Americans claim that a missile or rocket was fired in the Hormuz Strait area," spokesman General Ramezan Sharif said on the Guards' official website.

The Guards naval unit is responsible for securing Iranian interests in the Strait, where it regularly patrols the area and conducts exercises.