(REUTERS) — SEOUL — South Korea’s military said on Wednesday a drone found earlier this month on a mountain near the Demilitarised Zone border was confirmed to have been from North Korea and described it as a “grave provocation” that violated the Korean War truce.

The drone crashed while returning to the North and was found equipped with a camera and aerial photographs of a U.S. anti-missile defence system site in a southern region of South Korea, South Korean officials told a briefing.

The origin and flight path of the drone were confirmed in an analysis of the onboard computer and camera, South Korea’s defense ministry and military officials told the briefing.

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