The US Republican-led Senate has approved a bill to end US support for the Saudi-led coalition war in Yemen, BBC reports.
The bipartisan vote was 54 to 46, and is a rebuke to President Donald Trump's support of Saudi Arabia and its leader despite recent tensions.
Mr Trump has vowed to veto the resolution should it pass through the Democrat-led House.
The war in Yemen started in 2015 and has left thousands of Yemenis dead and millions more starving.
The US sells weapons used by the Saudis and its military provides logistical and intelligence support to the coalition for drone strikes.