Ahmed Abdul Rahman can hear the thud of artillery from where he lies in a makeshift cluster of tents in the Sudanese city of el-Fasher.
The 13-year-old boy was injured in a recent shelling attack.
I feel pain in my head and my legs, he says weakly.
For 17 months the paramilitary Rapid Support Forces (RSF) have besieged el-Fasher, located in their ethnic heartland of Darfur, and now they're closing in on key military sites in the city.
The conflict in Sudan broke out in 2023 following a power struggle between the top commanders of the RSF and the Sudanese army.
After losing control of the capital Khartoum the paramilitaries have stepped up efforts to seize el-Fasher - the army's last stronghold in the western Darfur region.
Army-held territory has shrunk to a pocket around the airport. For the tens of thousands of civilians trapped inside the city, each day is a nightmare.
The siege and fighting make it very difficult to get reliable information, but the BBC has worked with freelance journalists inside el-Fasher to understand the suffering of those trapped.
Warning: This story contains graphic details that some people may find distressing
Ahmed's whole body is full of shrapnel, says his mother Islam Abdullah. His condition is unstable.
But with hospitals coming under fire and running out of supplies, medical care is scarce.
She lifts Ahmed's shirt to reveal his wounds, his bony back a reminder of the hunger stalking the city.
Nearby, Hamida Adam Ali is unable to move, her leg is badly injured. She lay on the road for five days after being hit by shell fire, before she was carried to the camp for people displaced by the conflict.
I don't know if my husband is dead or alive, she says. My children have been crying for days because there is no food. Sometimes they find something to eat and sometimes they go to bed without food. My leg is rotting - it smells foul now. I am just lying down. I have nothing.
The RSF have made significant advances in recent weeks. They've released footage showing their fighters in a location which the BBC has identified as the headquarters of the military's armoured corps.
There are other bases nearby that Sudan's army, including its Sixth Infantry Division, is still defending.
In the past few days, it has posted a video of soldiers said to be cheering the arrival of much-needed supplies, delivered by airdrops.
But in the media warfare that frames the battles, RSF fighters celebrate what they portray as imminent victory in el-Fasher.
Seizing full control of the city would provide them a strategic advantage in the civil war after setbacks earlier this year, as it eases their access to Libya and strengthens their grip over the western border, say analysts.
The RSF advance is powered by increasingly deadly drones said to be supplied by the United Arab Emirates, a claim the wealthy Gulf state denies.
Footage verified by the BBC shows drones hitting both military targets and informal markets - civilians are not spared.
Last month, more than 75 people were killed in a strike on a mosque during morning prayers, an attack blamed on the RSF.
As the humanitarian crisis deepens, those who have fled el-Fasher report violence and robbery as they escape, while warnings of potential atrocities persist.
The situation for those still trapped grows more desperate each day as they await help amidst the ongoing siege.
