North Korea fires two rockets into the sea , says South Korea 's defense ministry . Launch comes after South Korea rejects North 's request to cancel military drills with U.S . CNN 's K.J . Comment: Tensions have also flared in recent months over maritime boundary .
North Korea fires two rockets into the sea , says South Korea 's defense ministry . Launch comes after South Korea rejects North 's request to cancel military drills with U.S . Comment: Tensions have also flared in recent months over maritime boundary .