South Korea says likely North drone flew over Seoul's presidential palace

SEOUL (Reuters) - A drone found last week while probably returning to North Korea had flown over the presidential palace in the South before crashing near the border, but would not have been able to carry a bomb, an official said on Thursday.

The drone was the first of two unmanned aircraft found in a span of a week, with the second found soon after a three-hour artillery barrage between the neighbours in waters near a disputed maritime border.