The United Nations special envoy to Yemen, Martin Griffiths, welcomed an offer by the Yemeni group Ansar Allah today to release a number of prisoners unilaterally, amid reports that the Houthis have released 290 prisoners.
Griffiths said he hoped it would lead to further progress on a prisoner swap.
The International Committee of the Red Cross (ICRC) confirmed that the Houthis released 290 Yemeni prisoners in a "unilateral" move on Monday.
Among them, 42 survived an attack on a detention center in Dhamar earlier this month, the committee said in a brief statement.
The Houthis had announced earlier on Monday, they plan to release 350 prisoners, including three Saudis, under the auspices of the United Nations as part of a peace initiative.