[CNN] Is North Korea still digging tunnels to the South?

October 3, 2014
This Rodong Sinmun photo released on June 30, 2014, shows North Korean leader Kim Jong-un talking to military officials during a tactical rocket firing drill of the North's Strategic Force at an unidentified place.   (Yonhap)

This Rodong Sinmun photo released on June 30, 2014, shows North Korean leader Kim Jong-un talking to military officials at unknown location. (Yonhap)

[CNN] – Gen. Hahn Sung-Chu never believed North Korea could dig a tunnel that reached Seoul — until now.

Standing inside a basement of an apartment block in the heart of the capital, the former two-star general in the South Korean military says, “This is a kind of invasion, North Korean soldiers working underneath us.”

Hahn says residents had complained of underground vibrations, but the subway does not run beneath them.

He says dowsers detected three tunnels, 13 to 16 feet (4 to 5 meters) wide at a depth of up to 39 feet (12 meters). His team drilled two bore holes to lower a camera, but before they could, they detected two underground explosions and their drill holes were blocked. [READ MORE]