Newest transfer comes after Pyongyang accused South Korea of sending drones carrying propaganda leaflets over its capital.
North Korea has blown up the northern sections of the roads that join it to South Korea, in response to South Korea’s navy.
Some components of the street north of the navy demarcation line dividing the international locations have been blown up at about noon (03:00 GMT), the Joint Chiefs of Employees mentioned in a message despatched to media on Tuesday.
The navy fired warning pictures south of the demarcation line, it mentioned.
Seoul had warned on Monday that Pyongyang was getting ready to explode the roads.
Tensions on the Korean Peninsula have risen since North Korea accused its neighbour of sending drones carrying propaganda leaflets over the nation’s capital Pyongyang.
The explosions got here a day after North Korean chief Kim Jong Un known as a gathering together with his high navy and safety officers to debate the problem.
In the course of the assembly, Kim described the flights because the “enemy’s severe provocation” and laid out unspecified duties associated to “rapid navy motion” and the operation of his “conflict deterrent” for defending the nation’s sovereignty, North Korean state media reported earlier on Tuesday.
North Korea earlier put frontline artillery and different military items on standby to launch assaults on South Korea, if its drones have been discovered over North Korea once more. South Korea has refused to verify whether or not it despatched drones however warned it will sternly punish North Korea if the security of its residents was threatened.
Destroying the roads could be according to Kim Jong Un’s push to chop off ties with South Korea, formally cement it as his nation’s principal enemy and abandon North Korea’s decades-long goal to hunt a peaceable Korean unification.
In 2020, North Korea blew up the liaison workplace for the 2 Koreas, signalling the top of a interval of detente.
In November final yr, Pyongyang mentioned it will transfer extra troops and navy tools to the border and would now not be certain by a 2018 joint military agreement after Seoul suspended components of the settlement in response to Pyongyang’s launch of a navy spy satellite tv for pc.
South Korean officers have mentioned that North Korea started including antitank limitations and laying mines alongside the border earlier this yr.