The resolution is co-sponsored by the United States, France, and Great Britain -- all permanent Security Council members with veto powers. The other two permanent members -- Russia and China -- oppose the imposition of sanctions. Joining them is Algeria, a non-permanent Security Council member and its only Arab representative.
A report by the UN investigating commission has implicated top Syrian and Lebanese security officials in the February bombing in Beirut that killed Hariri and 20 others.
Syria has strongly denied the charges.