Sudan war: UHCHR chief stresses need to help refugee hosts in Chad / Canada expands resettlement efforts for Sudanese refugees / UN investigate allegations of sexual exploitation of Sudanese refugees in Chad / With nowhere else to go, Sudanese refugees in Lebanon plead for evacuation / Women's rights groups fear FGM is rife among Sudanese refugees in Chad / Surge of refugees fleeing Sudan violence strains neighbouring Chad / Sudanese refugees are struggling after fleeing to Chad. Locals are being strained too / Sudanese refugees hiding in Ethiopian forest to escape bandits and militias / Funding is needed to support Sudanese refugees in Chad: UNHCR / Inside South Sudan's worsening refugee crisis - in pictures