South Korean air force jets fired warning shots at a Russian military plane after it violated the country's airspace on Tuesday, officials in Seoul said, in the first such incident between the countries.
Three Russian military planes initially entered South Korea's air defence identification zone off its east coast before one of them entered the country's territorial sky, the South's Defence Ministry said.
South Korean fighter jets then scrambled to the area to fire warning shots, a ministry official said, requesting anonymity due to department rules.
The Russian plane left the area but it returned and violated the South Korean airspace again later on, the ministry official said.
He said the South Korean fighter jets fired warning shots again. Each time, the Russian plane didn't return fire, the official said.