US Secretary of State Marco Rubio has joined a meeting of G7 foreign ministers in France for talks where the US-Israeli war with Iran will be the main focus.

Rubio is expected to face pressure to de-escalate the conflict as concerns continue to grow over its impact on the world economy.

The other G7 countries – the UK, Canada, France, Germany, Italy and Japan – are wary of being drawn in militarily. The group will also discuss the war in Ukraine.

As he headed to France, Rubio said it was in the "interest" of the G7 to "step up" and help with the Strait of Hormuz, which Iran has effectively blockaded, causing fuel prices to soar.

As they went into the meeting, UK Foreign Secretary Yvette Cooper told the media: "We need to see a swift resolution to this conflict that restores the regional stability, that needs to include the Strait of Hormuz."