Pyongyang, December 12 (KCNA) -- The Iranian permanent representative to the UN, in a letter to the UN on December 8, strongly denounced the U.S. drone violation of Iran's territorial airspace.

The letter noted that during recent months the U.S. has intensified provocative trick operations against Iran.

It called upon the UN to condemn the U.S. drone violation of Iran's territorial airspace and take clear and substantial steps to terminate the dangerous illegal acts against his country.