North Korea has fired two short-range missiles in its second weapons test in less than a week, the South Korean military says.

The missiles fired from the north-western city of Kusong hours after the top US envoy arrived in South Korea for talks on how to revive nuclear negotiations.

The continuing development of North Korea’s nuclear program and missile advancement is seen as a way to apply continued pressure on the US after their failure to make concession in ongoing denuclearisation negotiation.