South Korea on Friday ordered an evacuation on Yeonpyeong, an island near its border with North Korea, a local official told Reuters.
South Korea's military did not immediately respond to requests for more information. Earlier a newspaper reported that the South's military was due to resume live-fire drills there.
An official in the Yeonpyeong village office confirmed an evacuation order was issued at the request of the South Korean military.
The military told the village there was firing at sea by the South Korean military after "a situation" near the border, the official said. But it was not clear whether it was a drill or had some other cause.