Detonation of entrance to tunnel 2 and the observation building next to it. Photos by CNN Beijing bureau chief Tim Schwarz Tim Schwarz/CNN The deputy director of the North Korean Nuclear Weapons Institute briefs reporters before the demolitions begin. Tim Schwarz/CNN A close-up of a soldier standing guard in front of an observation building at tunnel 2. Tim Schwarz/CNN A soldier stands guard in front of the soon to be demolished observation building of tunnel 2. Tim Schwarz/CNN Detonation of entrance to tunnel 2 and the observation building next to it. Tim Schwarz/CNN Detonation of entrance to tunnel 2 and the observation building next to it. Tim Schwarz/CNN Journalists are taken to inspect the aftermath of the explosion at the mouth of tunnel 2. Tim Schwarz/CNN Journalists take photographs at the entrance to tunnel 3. Tim Schwarz/CNN A soldier stands at the entrance to tunnel 3. Tim Schwarz/CNN A view inside tunnel 3. Tim Schwarz/CNN The entrance to tunnel 4, an unused tunnel that North Koreans say was ready to conduct advanced nuclear weapons tests. Tim Schwarz/CNN A close-up of explosives rigged at the entrance to tunnel 4, an unused tunnel. Tim Schwarz/CNN Explosive charges were placed back as far as the eye could see in tunnel 4. Tim Schwarz/CNN Prev Next
