Trump envoy fails to secure deal as Norway prepares to host talks on how to restore civilian government in Sudan

The US is considering a much broader range of sanctions on the belligerents in the war in Sudan, in a tacit acknowledgment of the inability of the US envoy Massad Boulos to persuade the parties to accept a ceasefire.

Last week Donald Trump announced that work had begun to end the war after a personal request for his direct intervention from the Saudi crown prince, Mohammed bin Salman.

But Boulos, the father-in-law of Trump’s daughter Tiffany, has in fact been trying for months to persuade the Sudanese army and its rival, the paramilitary Rapid Support Forces, to back a ceasefire, to little end.

The US secretary of state, Marco Rubio, told a cabinet meeting at the White House on Wednesday that Trump was “the only leader in the world capable of resolving the Sudan crisis”.