BEIJING, Dec 9 (Reuters) - China and Russia carried out their 10th joint strategic air patrol over the East China Sea and western Pacific on Tuesday, China's defence ministry said in a statement.
The ministry said the patrol was under an annual cooperation plan between the two militaries.
The announcement came after South Korea said it had scrambled fighter jets when Chinese and Russian military planes entered and left its air defence zone on Tuesday. (Reporting by Beijing Newsroom; Editing by Andrew Heavens)
