North Korean aviation officials toured a leading Russian drone training center in what experts described as a bid to acquire technology for mass production of military unmanned aerial vehicles.

A delegation from the DPRK’s National Aviation Administration visited Russia from Feb. 3-11, touring Moscow State Technical University of Civil Aviation (MSTUCA) and taking part in a large-scale aviation expo, according to state media and a press release from the university.

The officials, led by the head of the North Korean aviation authority Rim Kwang Ung, visited MSTUCA’s “Technopark for Unmanned Aerial Vehicles” (UAV) where future drone pilots are being