South Sudan Tragedy

Here are some facts about the conflict in South Sudan, the world's youngest country:

* About 4 million South Sudanese have been forced to flee their homes. Nearly 1.9 million are internally displaced and about 2.1 million have fled to neighbouring countries.

* Up to 85 percent of internally displaced are women and children.

* Nearly 5 million people are severely food insecure. Earlier this year, pockets of the country plunged briefly into famine.

* The fighting has killed tens of thousands of people since it started in late 2013.

* Only 22 percent of South Sudan health facilities are fully operational.

* Some 900,000 children suffer from psychological distress and 2 million are out of school.

* More than 19,000 children have been forcibly recruited by armed groups.

* The cost of living in South Sudan has increased sharply, with inflation in the capital Juba reaching 183 percent year-on-year.

* Some 28 aid workers have been killed in South Sudan this year. Nine were shot dead in November.