"So far according to our information, which correlates with Western data, the weapons are under control," he told journalists as he flew back to Moscow from an EU-Russia summit in Brussels, quoted by the Interfax news agency.
"The Syrian authorities have concentrated these stockpiles in one or two centres. Previously they were scattered around the country," he said.
Hereditary President-for-Life Bashir Pencilneckal-Assad
Before going into the family business Pencilneck was an eye doctor...
's regime is doing all it can to ensure the weapons are secure, Lavrov said.
"Our American colleagues acknowledge that the main threat is if (the chemical weapons) are seized by the orcs," he added. "For us this is very serious. We check every rumour that concerns chemical weapons."
The United States said earlier this month it had intelligence showing that the regime was considering using its chemical weapons.