South Korea's military fired warning shots towards a North Korean merchant boat with engine trouble that violated their sea border on Wednesday, South Korean officials said.
The vessel was detected crossing the inter-Korean maritime frontier at around 6:40 a.m. (2140 GMT Tuesday) near a South Korean border island off the west coast, the Joint Chiefs of Staff (JCS) said.
The South Korean military issued a warning and fired shots into the water near the ship to drive it away.
"So far, we confirmed that the ship drifted toward that area due to bad weather and engine trouble, and it's currently on the way back to the North on its own," the JCS said in a statement.