North Korea strongly denied again on Sunday having anything to do with unmanned aircraft discovered crashed on the South Korean side of the inter-Korean border.

Last week, the South Korean government said it had concluded an investigation into the incident and concluded the three drones were launched from North Korea.

Among its evidence, Seoul said the onboard computer contained a program to fly from North Korea over the south and then back again.

North Korea’s National Defence Commission, through an article sent on the official Korean Central News Agency, called the investigation a “farce” and said it had been implicated to “do harm to its fellow countrymen in the north and invent a pretext for escalating the confrontation in a back room.”

A drone found crashed in South Korea (Photo: Korean Ministry of Defense)

A drone found crashed in South Korea (Photo: Korean Ministry of Defense)

North Korea’s denial isn’t a surprise.

In mid-April after South Korean officials released preliminary details of their investigation into the drones, the National Defence Commission first called the statements “false.”

What remains to be explained is a close similarity between the drones found in South Korea and a Chinese drone called the Sky-09P.

Two companies advertise the Sky-09P drone on their websites: China TranComm Technologies and Taiyuan Navigation Friend Aviation Technology. Pictures of the Chinese drone show it shares many of the same external features as one of the models of drone found in South Korea.

Similarities are highlighted between the Sky-09P drone and a drone found crashed in South Korea.

Similarities are highlighted between the Sky-09P drone and a drone found crashed in South Korea.