The United States has evidence that Syrian President Bashar al-Assad's government has built a crematorium at a large military prison outside the capital Damascus, a State Department official said on 15 May.
Stuart Jones, Acting Assistant Secretary of State for Near Eastern Affairs, said US officials believe the crematorium could be used to dispose of bodies at a prison where they believe Assad's government authorised the mass hangings of thousands of inmates during Syria's six-year-old civil war.
"Credible sources have believed that many of the bodies have been disposed in mass graves," Jones told reporters. During the briefing, he showed aerial images of what he said was a crematorium.
Jones also said he was not optimistic about a Russia-brokered deal to set up "de-escalation zones" inside Syria. The deal was reached with support from Iran and Turkey during ceasefire talks in the Kazakh capital of Astana earlier this month. Jones attended the talks.
Jones said Assad's government had carried out airstrikes, chemical attacks, extrajudicial killings, starvation and other measures to target civilians and its opponents. He criticised Russia and Iran for maintaining their support for Assad despite those tactics.
He did not say what measures the United States might take if Russia does not change its stance.
Tensions between the United States and Russia heightened after President Donald Trump ordered a cruise missile strike in April against a Syrian airbase that the United States said had been used to launch a poison gas attack on civilians.
Jones said he had not yet presented the evidence to Russian officials. He said he hoped Russia would help pressure the Assad government.
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