WATCH: Surveillance footage shows North Korea blowing up parts of inter-Korean roads on its side

North Korea blew up sections of inter-Korean roads and rail lines on its side of the heavily fortified border between the two Koreas, South Korea's military said on Tuesday (October 15). At around midday, some northern parts of the roads and rail lines connected to the South were blown up, the Joint Chiefs of Staff (JCS) said in a message sent to the media. In a video provided by the South Korean military, explosions were seen on roads at the inter-Korean borders, while North Korean soldiers and trucks were seen mobilized to the site. In response, South Korea's military fired warning shots south of the military demarcation line dividing the neighbors, though the explosions had not caused any damage on Seoul's side of the border, it said. The explosions came after Pyongyang pledged last week to completely cut off the inter-Korean roads and railways and further fortify the areas on its side of the border. Seoul had warned on Monday (October 14) that the North was getting ready for a detonation. (Production: Minwoo Park, Heejung Jung)