A chemical attack may be launched on Israel by Syrian rebels from government-controlled territories as a "major provocation", a number of sources have told RT.

The news comes as Russian Foreign Minister Sergey Lavrov proposed that Syria puts its chemical weapons arsenal under international control for subsequent destruction in order to prevent a possible military strike against the war-torn republic.

Moscow also urged the Syrian authorities to join the Organization for the Prohibition of Chemical Weapons. The offer has already been passed over to the Syrian Foreign Minister Walid al-Muallem, who met Lavrov in Moscow for talks on Monday.

“We don’t know if Syria will accept the offer, but if imposing international control over chemical weapons stored in the country can help to avoid military strikes, we are immediately going to start working with Damascus,” Lavrov said.

The Syrian Foreign Ministry has welcomed Moscow’s initiative, “based on the Syrian’s government care about the lives of our people and security of our country,” Muallem said later on Monday.

A few hours earlier, US Secretary of State John Kerry said that to avoid a military operation Syrian President Bashar Assad has a week to surrender control of “every single bit” of his stock of chemical weapons to the international community. “But he isn't about to do it and it can't be done,” he added, speaking at a media conference in London, as he was wrapping up his European tour in a move to win support for the Obama-proposed “limited” strike against Syria.

The US Administration has blamed the Syrian government for the alleged chemical weapons use in the Damascus suburbs on August 21. Washington has maintained it has the intelligence to prove it, but has so far refused to make public a single piece of concrete evidence that would link the Assad regime to the deadly incident.  

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