Japan's Defense Ministry says fighter jets from the Air Self-Defense Force and the US military have conducted a joint flight over the Sea of Japan.
Ministry officials say four F-15 fighter jets from the Japan Air Self-Defense Force Chitose Air Base and two F-16s from US Misawa Air Base, both in northern Japan, flew together for training on Tuesday afternoon.
Fighter jets were seen taking off one after another from the two bases between around 2 to 3 p.m.
The mission is seen as a show of Japan-US coordination in response to North Korea's launches of at least six ballistic missiles from a minimum of three locations on Sunday.
Japanese and US fighter jets made a similar joint flight after North Korea launched ballistic missiles on May 25.
Directly after North Korea carried out the launches on Sunday, Japan's Self-Defense Forces and the US military held a joint drill based on a scenario in which they were responding to a ballistic missile launch.