Hopes of a quick agreement to end weeks of violence in South Sudan have been dashed, after it was announced that talks in Ethiopia between the warring parties have been delayed.

Teams representing President Salva Kiir and sacked deputy Riek Machar were due to meet face-to-face on Saturday. No new timings have been announced.

At least 1,000 people have been killed since 15 December, and more than 180,000 people have been displaced in the conflict.

Emmanuel Igunza reports from Addis Ababa.