Marco Rubio’s visit to Riyadh, his first as secretary of state, came amid uncertainty about the future of Gaza and Ukraine and criticism of unilateral U.S. moves over the wars in both places.

U.S. Energy Secretary Chris Wright on Monday called a pledge to achieve net zero carbon emissions by 2050 a "sinister goal", and criticised the British government's attempts to hit clean energy targets.

After meetings in Israel, Secretary of State Marco Rubio is in Saudi Arabia to push President Trump's plan for Gaza and to meet with Russian counterparts on steps to ending the war in Ukraine.