Two Army officers died Tuesday hours after falling unconscious during a training at a reservoir, authorities said.
  

The two were being trained for guerrilla warfare at around 3:30 p.m. at a four-meter deep reservoir in the southwestern city of Gwangju. They went missing while swimming through the reservoir, and was rescued around an hour later.
 

They were taken to an Army hospital for treatment, but were pronounced dead later in the afternoon.
  

Sources said there were no rescue equipments nor medical specialists at the site of the accident.
  

They were identified as officers at South Korea's largest Army training institute in Gwangju.
  

An official at the institute said crossing the reservoir wasn't part of the training, adding he is asking trainees at the scene how the accident happened. (Yonhap)