The U.N. security council on Wednesday is expected to vote on a resolution supporting a new U.N.-brokered deal to form a unity government in Libya.

Diplomats say discussions continue Tuesday. A draft of the resolution obtained by The Associated Press makes no move to lift the arms embargo that is meant to clamp down on the flow of arms to militia groups.

Oil-rich Libya slid into chaos after the 2011 toppling and killing of dictator Muammar Qaddafi and ended up split between two rival governments. The Islamic State group has recently exploited the chaos to gain territory.

The country’s rival factions last week signed a deal to form a unity government that is meant to bring about peace. Other political factions and heavily armed militias have expressed opposition.