LONDON -- North Korean leader Kim Jong Un oversaw the test-firing of two newly developed types of missiles, state media reported, launches that came as the United States and South Korea held their annual military drills to the south.

North Korea has test-fired two missiles newly designed to protect against aerial strikes, overseen by leader Kim Jong Un, state media announced Sunday.

North Korea accuses South Korea of a “serious provocation” after South Korean troops fired warning shots Tuesday at North Korean soldiers setting up barriers along their tense border.