Ghaleb Al-Mutlak, from the southern separatist movement, said that the proposed ceasefire would be for a One-month halt to all fighting, including air strikes by the Saudi-led coalition. "We're all in agreement about the need for the ceasefire, but we're still discussing details," he told reporters after Iran-backed Houthi rebels held their first talks in the Swiss city with the U.N. special envoy Ismail Ould Cheikh Ahmed.