The UN rights chief Thursday called on the international community to exert all possible pressure on the fighting sides in Sudan to resolve the conflict and end "the wanton violence."

The fighting has plunged "this much-suffering country into catastrophe," United Nations High Commissioner for Human Rights Volker Turk expressed.

Addressing a special session of the UN Human Rights Council on the situation in Sudan, Turk urged "all states with influence in the region to encourage, by all possible means, the resolution of this crisis."

His comments came as fighting continued in the Sudanese capital, pushing even more people to undertake dangerous journeys to safety across the country's borders.

More than 750 people have been killed and hundreds of thousands have been displaced in the fighting that began on April 15 between army chief Abdel Fattah Al-Burhan and his former deputy Mohammad Hamdan Dagalo, who commands the paramilitary Rapid Support Forces (RSF).

Read next: More than 71mln people internally displaced worldwide in 2022: Reports

"I condemn the use of violence by individuals who have no regard for the lives and fundamental rights of millions of their own compatriots," Turk said.

He also slammed "this wanton violence, in which both sides have trampled international humanitarian law, notably the principles of distinction, proportionality and precaution."

Thursday's urgent council session in Geneva was expected to wrap up later with a vote on a draft text calling for an immediate halt to the violence.

The draft text being discussed condemns "all reported violations and abuses of human rights and violations of international humanitarian law, including reported acts of sexual and gender-based violence, committed since the start of hostilities by all parties to the conflict across the country."

In particular, the text calls for strengthening the mandate of an existing special rapporteur on the rights situation in Sudan to include "detailed monitoring and documentation... on all allegations of human rights violations and abuses since October 25, 2021, including those arising directly from the current conflict."

It also calls for the expert to assist the UN rights chief in drafting "a comprehensive report" on the rights situation in Sudan, to be presented during the main annual rights council session in March next year.

Read more: No breakthrough yet in Sudan talks, as clashes continue