South Korea's military fired warning shots at a suspected drone from North Korea on Tuesday amid tension over Pyongyang's latest missile test which drew international condemnation and a warning from China.
The identity of the object remained unclear, the military said, but Yonhap news agency said it was possibly a drone, more than 90 shots were fired in return and it disappeared from radar screens.
The incursion came with tension already high on the Korean peninsula after the North's test-launch of a ballistic missile test on Sunday which Pyongyang said proved advances in its pursuit of building a nuclear-tipped weapon that can hit U.S. targets.