UN chief Ban Ki-moon has urged the Security Council to add 5,500 UN troops to the 7,000-strong force in South Sudan, amid escalating fighting there.
His plea comes as new details emerge of alleged ethnic killings committed during more than a week of violence.
Mr Ban warned that anyone responsible for abuse would be held to account.
Tens of thousands of people have fled fighting, as rebels thought to support sacked former vice-president Riek Machar have seized major towns.
For more on this story, visit: BBC News – UN’s Ban Ki-moon seeks to boost South Sudan force.