Jordan's Prime Minister Bisher Khasawneh submitted his resignation on Sunday less than week after a parliamentary election that saw some gains for the opposition.
Jaafar Hassan, now head of King Abdullah's office and a former planning minister, is expected to replace Khasawneh, a veteran diplomat and former palace advisor who was appointed nearly four years ago, the officials told Reuters on condition of anonymity.
Hassan will face the challenges of mitigating the impact of the Gaza war on the kingdom's economy, hard hit by curbs to investment and a sharp drop in tourism.
The outgoing prime minister had sought to push reforms pushed by King Abdullah to help reverse a decade of sluggish growth hovering at around two per cent that was worsened by the pandemic and conflict in neighbouring Iraq and Syria.
The Muslim Brotherhood opposition and ideological allies of Hamas made significant gains in Tuesday's election, boosted by anger over Israel's war in Gaza.
The new composition of the 138 member parliament retains a pro-government majority, but a more vocal Islamist-led opposition could challenge IMF-led free-market reforms and foreign policy.
President Donald Trump said the US was considering "winding down" its military operation against Iran, as Iran and Israel traded attacks on Saturday and Iranian media said the nuclear enrichment facility in Natanz had been attacked.
Robert Mueller, the no-nonsense former FBI chief who documented Russia's interference in the 2016 US election and its contacts with Donald Trump's campaign but opted not to bring criminal charges against a sitting president, has died at age 81.
Fourteen people died and 25 were seriously injured in a fire at a car parts factory in the South Korean city of Daejeon, fire authorities said on Saturday.
Russian attacks on Ukraine killed two people in Zaporizhzhia and left most of the northern region of Chernihiv without power on Saturday, Ukrainian officials said.