On Tuesday, it was reported that the U.S. had started its biggest naval exercises in the past few years in the area.
"Statements surrounding the U.S. Fifth Fleet conducting large-scale U.S. naval exercises in the region are untrue," a deputy commander of Iran's Islamic Revolutionary Guards Corps said.
According to Kevin Aandahl, a representative of the Fifth Fleet, the ships will keep out of Iranian waters, and the maneuvers are unconnected with Iran's detention of British sailors and marines.
The British Ministry of Defense said that Iran earlier detained 15 Royal Navy sailors and marines from HMS Cornwall in Iraqi territorial waters, which in accordance with a UN Security Council mandate under Resolution 1723 was inspecting ships in the Persian Gulf.
Britain has frozen all official bilateral contacts with Iran until all of its 15 detained naval personnel have been released, the British foreign secretary said earlier Wednesday.
Following Britain's claims Iran's embassy in London issued a statement in which it said the sailors and marines had been 0.5 km inside Iranian waters at the time they were detained March 23.