DUBAI: A prisoner exchange involving hundreds of detainees from Yemen's brutal civil war will start tomorrow, a Yemeni government official said, against a backdrop of rising hopes for peace, reports AFP.

Nearly 900 prisoners, most of whom were fighting with Huthi rebels, will be flown between Yemen and Saudi Arabia, which leads the military coalition fighting on behalf of the ousted government, the official said on Tuesday.

Hundreds of thousands of people have been killed, through direct and indirect causes, and Yemen is suffering one of the world's worst humanitarian crisis, according to the United Nations.

The prisoner exchange, the biggest since October 2020, will last three days and involve multiple cities in Yemen and Saudi Arabia, said Majid Fadael, the official spokesman for the government delegation negotiating the exchange.

The Huthis will release 181 prisoners, including Saudis and Sudanese, in exchange for 706 detainees held by government forces, according to an agreement reached last month in Switzerland.

"All arrangements have been completed... to implement the agreed-upon exchange process," Fadael tweeted.

"The first day of the exchange process will be through reciprocal flights of the Red Cross between Aden-Sanaa and Sanaa-Aden," he added.

Yemen's six-month, UN-brokered truce that officially lapsed in October is still largely holding, providing respite for a population of 30 million that is mostly dependent on aid.

This week, a Saudi delegation has held discussions with the Huthi leadership in Sanaa, hoping to "stabilise" the truce and seeking inter-Yemeni dialogue towards a "comprehensive political solution", according to the Saudi ambassador.

Analysts say oil-rich Saudi Arabia wants to exit the war in neighbouring Yemen to focus on domestic projects aimed diversifying its crude-dependent economy.

After Thursday's flights between rebel-held Sanaa and Aden, on Friday and Saturday prisoners will be flown in and out of Riyadh and Abha in Saudi Arabia and Yemen's Sanaa, Mocha and Marib, Fadael said.

"This exchange process will be followed by other exchanges in the near future until all detainees and abductees are released on the basis of all for all, and all detention centres and prisons are cleared," he tweeted.

According to the Huthis, 13 prisoners arrived at Sanaa international airport on Saturday, in exchange for a Saudi prisoner who was released earlier.