Russian President Vladimir Putin on Monday called any possible foreign military intervention against Syria a form of "aggression" that would rattle the entire region and contravene international law.

Putin told a summit of an ex-Soviet security group that he was grateful for its decision to support Moscow's refusal to sanction strikes against President Bashar al-Assad's regime for its alleged use of chemical weapons.

"The members of the Collective Security Treaty Organisation (CSTO) are united in their view that the situation around Syria can only be resolved through political means," ITAR-TASS quoted Putin as saying at a meeting in the southern Russian port city of Sochi.

"Any outside use of force would be a grave violation of international law, which in the language of the UN Charter is referred to as 'aggression,'" Putin said.

Syria delivered a complete statement of its chemical weapons inventory to the Organization for the Prohibition of Chemical Weapons (OPCW) on Saturday, meeting the deadline set by the Russia-US deal to place the weapons stockpile under international control to avoid a US military strike.

China welcomes Syria's submission of its chemical weapon inventory to OPCW, foreign ministry spokesman Hong Lei said on Monday.

China supports the OPCW in playing an active role in the chemical weapons issue, Hong said at a daily news briefing, hailing Syria's move as "another positive act" after it applied to join the organization.

China is willing to work with all parties to help the OPCW Executive Council in making a decision about eliminating Syria's chemical weapons at an early date, Hong said.

"China will, as always, support the OPCW's work, including sending experts to join relevant efforts on the Syria chemical weapons issue," Hong said.

AFP - Xinhua