"They talked about what's going on in the Red Sea and the need for a continued international multilateral approach to disrupting and degrading Houthi capabilities," Kirby told reporters in Washington.

Biden and Sunak also spoke about the need to bring down the number of civilian casualties and to increase the flow of humanitarian assistance into Gaza and the urgent need for supplemental funding and support for Ukraine, Kirby said.

(Reporting by Trevor Hunnicutt in Washington; Writing by Ismail Shakil; Editing by Chris Reese)