NAIROBI, Kenya (AP) — South Sudan’s top U.N. aid official on Saturday hailed a new peace deal and called for food aid to flow to counter the risk of mass hunger. A military spokesman said a cease-fire would take hold, but wary skepticism remained: This is the conflict’s second peace deal.

The truce signed by President Salva Kiir and former Vice President Riek Machar late Friday in neighboring Ethiopia calls for a cessation of hostilities within 24 hours and unhindered humanitarian access.