Yellow fever outbreak kills 164 in Sudan's Darfur -WHO
Half of targeted population vaccinated so far - WHO
S.Sudan says holds successful talks with Sudan on border dispute
The two former civil war foes agreed at talks in Ethiopia in September to end hostilities after coming close to war in April
South Sudan official visits Sudan to try to resolve border dispute
The two neighbours have been unable to agree how to withdraw armies
Sudan says to resume security talks with South Sudan next week
In September, the neighbours agreed to end hostilities and revive oil exports after coming close to war in April
Top polluter Qatar defends right to host climate talks
The Gulf state, which has one of the highest per capita incomes in the world and the world's highest per capita emissions, has yet to indicate it will set specific targets for emissions cuts