The Syrian government has rejected a report which claims to show the systematic torture and killing of around 11,000 prisoners, calling it "politicised" and an attempt to undermine peace talks in Geneva.
ITV News Middle East correspondent Geraint Vincent tweeted:
A report claims evidence of "industrial scale killing" and torture of prisoners of the Syria regime. This article contains graphic images.
A report by leading international lawyers accuses Syria of systematic torture. A warning that this article contains graphic images.