Almost 750 million people worldwide denied safer drinking water - UN
Sharp inequalities in access to improved drinking water and sanitation persist around the world
A third of South Sudanese now severely food insecure due to ongoing conflict
Urgent action required to prevent famine
South Sudan's rebel leader Riek Machar smiles as he meets his friends at Sheraton Hotel in Addis Ababa
South Sudan's rebel leader Riek Machar smiles as he meets his friends at Sheraton Hotel in Addis Ababa May 9, 2014. South Sudan's President Salva Kiir arrived on Friday in Ethiopia's capital for the first face-to-face talks with Machar to try to end four months of conflict and avert a possible genocide. REUTERS/Goran Tomasevic (ETHIOPIA - Tags: CIVIL UNREST POLITICS)
South Sudan's rebel leader Riek Machar stands next to unidentified men he meets his friends at Sheraton Hotel in Addis Ababa
South Sudan's rebel leader Riek Machar (C) stands next to unidentified men he meets his friends at Sheraton Hotel in Addis Ababa May 9, 2014. South Sudan's President Salva Kiir arrived on Friday in Ethiopia's capital for the first face-to-face talks with Machar to try to end four months of conflict and avert a possible genocide. REUTERS/Goran Tomasevic (ETHIOPIA - Tags: CIVIL UNREST POLITICS)
South Sudan's rebel leader Riek Machar smiles as he meets his friends at Sheraton Hotel in Addis Ababa
South Sudan's rebel leader Riek Machar smiles as he meets his friends at Sheraton Hotel in Addis Ababa May 9, 2014. South Sudan's President Salva Kiir arrived on Friday in Ethiopia's capital for the first face-to-face talks with Machar to try to end four months of conflict and avert a possible genocide. REUTERS/Goran Tomasevic (ETHIOPIA - Tags: CIVIL UNREST POLITICS)
South Sudan's rebel leader Riek Machar smiles as he meets his friends at Sheraton Hotel in Addis Ababa
South Sudan's rebel leader Riek Machar smiles as he meets his friends at Sheraton Hotel in Addis Ababa May 9, 2014. South Sudan's President Salva Kiir arrived on Friday in Ethiopia's capital for the first face-to-face talks with Machar to try to end four months of conflict and avert a possible genocide. REUTERS/Goran Tomasevic (ETHIOPIA - Tags: CIVIL UNREST POLITICS HEADSHOT)
South Sudan's rebel leader Riek Machar smiles as he meets his friends at Sheraton Hotel in Addis Ababa
South Sudan's rebel leader Riek Machar smiles as he meets his friends at Sheraton Hotel in Addis Ababa May 9, 2014. South Sudan's President Salva Kiir arrived on Friday in Ethiopia's capital for the first face-to-face talks with Machar to try to end four months of conflict and avert a possible genocide. REUTERS/Goran Tomasevic (ETHIOPIA - Tags: CIVIL UNREST POLITICS HEADSHOT)
South Sudan's president in Ethiopia for talks with rebel leader
A ceasefire signed by the rival groups in January has been largely ignored by both sides
S. Sudan President Kiir in Addis Ababa for talks with Machar - officials
SOUTHSUDAN-UNREST/ARRIVAL (URGENT):S. Sudan President Kiir in Addis Ababa for talks with Machar - officials
EU considering sanctions against warring South Sudanese -ambassador
The United States this week imposed sanctions on two people on opposing sides of the ethnic violence in South Sudan