More than 60,000 people have fled the Sudanese city of el-Fasher, which was captured by the paramilitary Rapid Support Forces (RSF) over the weekend, according the UN refugee agency.
There have been reports of mass executions and crimes against humanity as the RSF fighters stormed the city after an 18-month siege marked by starvation and heavy bombardment.
The flow of those fleeing the violence towards the town of Tawila, about 80km (50 miles) west of el-Fasher, had increased in the past few days, the UNHCR's Eujin Byun told the BBC.
They were narrating horrendous stories of atrocities, including rape, and the agency was struggling to find enough shelter and food for them, she said.
Every child was suffering from malnutrition, she added.
