Darfur unrest: New wave of Sudanese refugees in Chad
Renewed conflict in Sudan's Darfur region has seen a fresh wave of refugees flee across the border to Chad in recent months.
At least 20,000 Sudanese and nearly the same number of Chadians living in Darfur have crossed the border in the last four months.
Most of them converged around the Chadian border town of Tissi. For security reasons, the UN's refugee agency, UNHCR, decided to relocate them further to a new refugee camp near the village of Abgadam.
But, as BBC Africa's Laeila Adjovi reports, providing them with clean water is proving to be a big challenge.
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