The United Nations Security Council has adopted a resolution calling on Sudan and South Sudan to stop fighting and resolve their issues, or face possible sanctions.

The 15-nation Council voted unanimously Wednesday in favor of the resolution, which demands both sides “immediately cease all hostilities” and reach an agreement on oil, border and citizenship issues.

The measure stresses the need to establish a “comprehensive, just and lasting peace between Sudan and South Sudan.”

It also threatens both countries with possible economic and diplomatic sanctions if they ignore the Council's decision.

Russia and China, both veto-wielding permanent members of the Council, had resisted the possibility of sanctions but supported the resolution in the end.

China's ambassador, Li Baodong, said Beijing is cautious about the use and threat of sanctions, but added that they are “deeply worried” about the deterioration of relations between the two countries.

U.S. Ambassador Susan Rice said the goal is not to impose sanctions, but to resolve the conflict.

The resolution endorses an African Union roadmap which gives Sudan and South Sudan 90 days to settle their issues or face binding international arbitration.

AU-mediated talks between the two Sudans have produced little progress.

Meanwhile, Sudan said Wednesday that it has resumed pumping oil from the Heglig oil fields, which South Sudan occupied for 10 days last month.