At least 13 people have been killed after an attack on one of the last remaining hospitals in el-Fasher, a Sudanese city trapped under siege.
Sixteen others, including a doctor and nurse, were injured after the paramilitary Rapid Support Forces (RSF) shelled Saudi hospital several times on Tuesday night, a source there told the BBC. A group of Sudanese medics has called the attack a war crime.
Pictures showed shattered windows, cracks from shrapnel, a gaping hole in the mud-brick wall and twisted metal from hospital beds covering the floor.
The RSF has been besieging el-Fasher for more than 17 months, leaving hundreds of thousands of people stuck in the city, facing starvation.
The paramilitary group is fighting the army for full control of el-Fasher, the last military stronghold in the vast Darfur region.
This is the second strike on the Saudi hospital this year - the first in January killed three children and injured three others.
In recent weeks, the RSF has intensified its assault on el-Fasher, leading experts to believe the city could soon fall unless the army receives immediate reinforcements.
The two sides have been engaged in a ferocious civil war for more than two years, causing the world's worst humanitarian crisis and tens of thousands of deaths.
UN High Commissioner for Human Rights Volker Türk warned last Thursday that urgent measures must be taken to protect civilians from the violent siege.