The reservist fired a K-2 rifle at other reservists who was calibrating their rifles for “zeroing training,” which involves adjusting a rifle scope to improve marksmanship. He suddenly aimed his rifle at others and began shooting at them, Army officials said.

Those injured were transported to a military hospital in Seongnam, Gyeonggi Province and civilian hospitals near the site. One of the three wounded reservists is reportedly in critical condition.

The Army is investigating the cause of incident.

Every eligible South Korean man aged between 18 and 35 is obliged to serve two years in the military.

After completing their military duty, they are required to serve in the reserve forces for eight more years.

By Yeo Jun-suk
(jasonyeo@heraldcorp.com)