South Korea's military says North Korea has fired several ballistic missiles into the sea. The launch Monday happened hours after South Korean and U.S. troops kicked off their large annual combined drills,

North Korea launched several ballistic missiles toward the Yellow Sea on Monday afternoon, Seoul's military said, on the first day of a large-scale joint U.S-South Korea military exercise on the Peninsula.

North Korea fired several ballistic missiles into the sea on Monday, South Korea’s military said, hours after South Korean and US troops kicked off large annual combined drills, which the North views as an invasion rehearsal.