P&O Cruises has cancelled cruises around Dubai and the Arabian Gulf after Iran seized a British-flagged tanker in the region.
Citing increased tensions, the company said it has cancelled its planned programme in the region from October until at least March next year and all guests be issued a full refund.
Last month, Iran's Revolutionary Guards seized a British tanker, Stena Impero, near the Strait of Hormuz for alleged marine violations. That came two weeks after Britain seized an Iranian oil tanker near Gibraltar, accusing it of violating sanctions on Syria.
"As a British company flying the Red Ensign it is not advisable for us to maintain our planned Dubai and Arabian Gulf programme this winter season," said Paul Ludlow, P&O Cruises president.
"We have therefore taken the unusual step of withdrawing Oceana from the region for the upcoming season."
Reporting by Andrew MacAskill