North Korea fired multiple cruise missiles toward the East Sea on Thursday, South Korea's military said, a day after a "serious" accident occurred during Pyongyang's launch of a new warship.

Multiple short-range ballistic missiles were fired by North Korea from an area around its eastern port city of Wonsan, South Korean military officials said.

North Korea fired multiple short-range ballistic missiles Thursday toward the East Sea (Sea of Japan), according to South Korea's military. The launch marked Pyongyang's first ballistic missile test since March, Yonhap News Agency reported. The missiles flew up to 800 kilometers (497 miles) before landing in the sea.