The Houthi rebel group prevents the import of basic commodities, as well as medicine, propane, and oxygen cylinders, to besieged areas of Taiz.
According to Mohammed, the only way oxygen cylinders can be brought in is by smugglers, who carry goods on the backs of camels on a road cutting through the mountains.
The oxygen cylinders are transported from Aden province to Talooq village, only four kilometres from Taiz. Then, the smugglers take the oxygen cylinders to Taiz's al-Maradei area.