LATEST: North Korea holds drill to mark military anniversary day

LATEST: North Korea has held major live-fire drills as it marks the anniversary of the founding of its military.

UPDATE 12.30:: North Korea has held major live-fire drills as it marks the anniversary of the founding of its military.

The exercise took place in an area around the North's eastern coastal town of Wonsan, according to the South Korean military, as a US guided-missile submarine arrived in South Korea amid rising tensions over Kim Jong Un's regime.