mar 3, 1990 - Fourth tunnel into South Korea discovered
Description:
A fourth tunnel was discovered on 3 March 1990, north of Haean town in the former Punchbowl battlefield. The tunnel's dimensions are 7 by 7 feet, and it is 476 ft deep. The method of construction is almost identical in structure to the second and the third tunnels.
Added to timeline:
North Korean Conflicts
Date:
