North Korea fired 25 short-range rockets on Sunday in what the South Korean military described as a "provocative" action.
The Soviet-made Free Rockets Over Ground were fired from the east coast into open water. South Korean Ministry of National Defense spokesman Kim Min-Seok commented on the launch: "We evaluate it as a firing demonstration in response to the joint drill between South Korea and the U.S. We are currently additionally analyzing its intention... North Korea should halt any actions that can stir military tension and create uneasiness to the neighboring countries."
South Korean defense officials, speaking to CNN on the condition of anonymity due to security protocol, said the missiles seem to have reached approximately 70 kilometers into the Sea of Japan.
North Korea, according to state-media, defended its military exercises as "justifiable self-defense behavior."