(CNSNews.com) – A U.S. Navy warship which Iran claims to have chased away from a naval exercise in the Persian Gulf this week was at the time more than 7,000 miles away – in its home port of Norfolk, Virginia.

Iranian state media have been reporting that an Iranian Navy warship on Wednesday sent a warning to the USS Monterey, which Iran claims was sailing near its annual military exercises near the Strait of Hormuz, and that as a result of the warning the guided missile cruiser “left the region immediately.”

In the reports, some of which also carried photos of the Monterey, military officials claimed the U.S. vessel was evidently attempting to spy on the exercises.

But a spokesman for the Bahrain-based U.S. Fifth Fleet, Cmdr. Kevin Stephens, said not only was the Monterey not in the Gulf at the time of the alleged incident, it was “in her home port of Norfolk, Virginia.”