Allegations surfaced last month of sexual violence, including rape and gang rape by security forces against female protesters, according to the United Nations.
The ruling sovereign council has vowed to investigate violence against the protesters.
On Saturday, US Secretary of State Antony Blinken urged security forces to “immediately cease the use of deadly force against protesters” and to hold those responsible for violence accountable.
He also called for Sudanese leaders to accelerate their efforts to form a “credible cabinet,” an interim parliament and judicial electoral bodies that will prepare for the country’s planned 2023 elections.
The rotating leadership of the sovereign council now chaired by General Abdel-Fattah Burhan should be transferred to a civilian as was planned before the coup, Blinken said.
“We do not want to return to the past, and are prepared to respond to those who seek to block the aspirations of the Sudanese people for a civilian-led, democratic government,” he added.
The October military takeover upended a fragile planned transition to democratic rule following a popular uprising that forced the military’s overthrow of longtime autocrat Omar al-Bashir and his Islamist government in April 2019.
Hamdok, a former UN official seen as the civilian face of Sudan’s transitional government, was kidnapped during the coup but reinstated in November amid international pressure.
He returned to power in a deal that calls for an independent technocratic cabinet under military oversight led by him.
That deal, however, was rejected by the pro-democracy movement, which insists that power be handed over to a fully civilian government tasked with leading the transition.
Hamdok defended the November 21 deal with the military, saying that it was meant to preserve achievements his government made in the past two years, and to “protect our nation from sliding to a new international isolation.”