"We believe that the building of a crematorium is an effort to cover up the extent of mass murders taking place at Saydnaya Prison", he said. These mass killing were not to be known to the world, so the Bashar Assad's government have chosen fire to dispose the bodies from the mass murder in many Syrian villages and countries.
He said the American claim about the crematorium is based on information from the US intelligence community and humanitarian groups.
More than 400,000 people have been killed since the Syrian civil war began in 2011, according to an estimate released a year ago by Staffan de Mistura, the United Nations and Arab League envoy to Syria.
Madhar Sharabjty, a Syrian refugee in Turkey whose brothers were detained by the Assad regime in 2011, said the news was extremely worrisome.
An Israeli minister says Syrian President Bashar al-Assad is to blame for the sufferings of the Arab state and should be assassinated, a day after the USA leveled fresh allegations against the Damascus government. It is now pushing the idea of "de-escalation zones" that would be created to reduce violence, while not challenging Assad's authority over nearly all of Syria's major cities. "The (Assad) regime must stop all attacks on civilian and opposition forces".
The official said the atrocities were committed with Russia's "seemingly unconditional support".
The US Department of State officially announced the above-mentioned accusations, referring to intelligence and "credible" humanitarian agencies.
Verification of the crematorium hiding or disguising mass murders at the prison will be presented to the worldwide community, Mr Jones said.
Jones also showed photos of the crematorium during Monday's news briefing.
The U.S. has not presented this evidence to the Russian government yet, according to Jones, but he added that last week's talks with Russian Foreign Minister Sergey Lavrov in Washington gave the administration hope that Russia will comply.
"Yesterday the U.S. administration pulled out a new Hollywood screenplay disconnected from reality, accusing the Syrian government of having, according to the administration, built a crematorium at the Saydnaya prison". "And Russia must bear responsibility to ensure regime compliance". Simply put: "the killing and devastation has gone on for far too long in Syria". AI estimated in their report that between 5,000-13,000 prisoners had been executed in secret during that time period, at a rate of roughly 20-50 prisoners each week.