North Korea has fired a series of projectiles from an area known to be used by the military, South Korea's military have said.
According to Yonhap, which quoted a South Korean military release, the projectiles were fired from Sino-ri, an area situated northwest of Pyongyang.
A missile operating base is located in the Sino-ri area and houses medium-range Nodong missiles.
The unidentified projectiles fired on Thursday travelled eastwards, but it is not clear where they eventually landed.
It's the second time in a week that North Korea has apparently conducted a launch.
The pointer on Google Maps below shows the location of the Sino-ri missile base.
The latest reported escalation came just a day after the US Special Representative for North Korea, Stephen Biegun, arrived in Seoul to meet with South Korea's Unification Minister Cho Myung-gyun.