MOSCOW, March 16 /TASS/. New details of toxic chemical agents application by the Islamic State militants in northern Iraq is a source of great concern, the Russian Foreign Ministry said on Monday.

"Moscow has been seriously concerned with reports about new tragic details of the terrorist activities of the Islamic State militants in the Kurdish Autonomous Region (KAR) in Iraq," the ministry said.

"‘The analysis of samples of soil and clothes taken at the blast site of the explosive-stuffed car which an Islamic State suicide bomber blew up in northern Iraq in January 2015 revealed a level of chlorine content that makes it possible to claim that the chemical substance had been used as a weapon," the KAR government said in a recently issued statement.

The samples were examined in a certified laboratory in a European Union country at the KAR government’s request.