Indonesia, Dec. 16 -- Indonesia's Tanjungpura Military Command is investigating an attack on Indonesian soldiers allegedly carried out by 15 Chinese nationals near a mining company site in Ketapang, West Kalimantan, officials said Tuesday, following a drone incident.

Army spokesman Col. Yusub Dody Sandra said the incident occurred at about 3:40 p.m. on Sunday, December 14, during a unit training exercise, when troops received a security report about an unidentified drone flying near the training area.

Four soldiers from a combat engineering battalion went to the suspected launch site and found four Chinese nationals operating a drone without authorization inside the restricted zone, according to the military, during the scheduled field ...