United Nations special envoy to Yemen Ismail Ould Cheikh Ahmed called on Saturday all Yemeni factions to “immediately” return to the negotiations table and take part in the peace process. In a statement from his office obtained by Asharq Al-Awsat, he expressed his “deep concern” with the latest developments in the capital Sana’a and other regions. “We call on all sides to respect their commitments in accordance to International Humanitarian Law,” he added. He urged all sides to exercise restraint and never direct their attacks against civilians. The UN envoy reiterated that the political solution was the only way to end the conflict in Yemen.