South Korea said it scrambled fighter jets in response to an intrusion into its air defence identification zone by 19 Russian and Chinese military aircraft on Tuesday.
Four Chinese warplanes entered the Korea Air Defence Identification Zone (KADIZ) followed by 15 Russian aircraft, according to South Korea`s Joint Chiefs of Staff (JCS).
The South Korean military dispatched air force fighters to take tactical measures.
The South Korean military said the Chinese military had informed South Korea that its planes were carrying out routine training before the Chinese aircraft entered the KADIZ.
“This incident seems to be a joint military drill between China and Russia but it requires a further analysis,” the JCS said in a statement.
South Korea`s foreign ministry contacted China and Russia and told them there should not be a recurrence, Yonhap news agency reported.