Iran on Saturday issued a strong warning to the United Kingdom and France against any potential military activity in the Strait of Hormuz, insisting that responsibility for the security of the strategic waterway belongs exclusively to the countries bordering it.

Kazem Gharibabadi, Iran's deputy foreign minister, made the remarks in a post on his official X account in response to a joint announcement by Britain and France regarding plans for a multinational maritime mission in the Strait of Hormuz.

"The security of the Strait of Hormuz is the responsibility of the countries bordering it," Gharibabadi wrote. "Those who create tensions and crises will bear responsibility for the consequences of their adventurism. This is a serious warning."

He added that the Strait of Hormuz "is not a stage for displaying the military power of countries from outside the region."

Gharibabadi said Iran, "as a responsible state and guarantor of security in the Strait," strongly opposes any foreign military activity in the sensitive waterway and warned against actions that could further increase regional tensions.

The warning came one day after the United Kingdom and France announced their readiness to deploy a multinational maritime mission aimed at supporting freedom of navigation through the Strait of Hormuz.

In a joint statement, Emmanuel Macron and Keir Starmer described the Strait of Hormuz as a vital artery for the global economy and said Oman had agreed to cooperate with both countries to help ensure maritime safety within its territorial waters.

France also announced it would maintain mine-clearing assets, escort vessels and other maritime capabilities in the region, while redeploying the aircraft carrier French aircraft carrier Charles de Gaulle to its home port in Toulon following the recent US-Iran memorandum of understanding.