Aleppo: Brain surgery carried out on hospital floor
29 September 2016 Last updated at 00:07 BST
Contains distressing footage from the start and graphic scenes of surgery
BBC Newsnight has obtained distressing footage which shows the grim reality inside an Aleppo hospital.
The rebel-held eastern part of the city is under siege and is subject to a sustained assault by the Syrian government. On Wednesday, two hospitals were struck.
John Sweeney reports.