North Korea just planted mines across the Korean border and fired a missile back
1 hour ago · 5 October 2026Share
A South Korean soldier briefs a senior U.S. official on points of interest at the Demilitarized Zone separating North and South Korea. File photo. DoD photo by D. Myles Cullen. (Released) · Public domain
South Korea's military just said it out loud.
North Korea planted landmines on the southern side of the Korean border. On purpose.
Here's what happened. Two weeks ago, two mines went off about 10 metres south of the line that splits the two Koreas. Three South Korean soldiers got hurt. Two seriously — one lost his foot. One had minor injuries.
They were from South Korea's 25th Infantry Division. They were clearing a path through the Demilitarised Zone, getting ready for a joint check with the UN Command into changes in the ground there.
So what proves North Korea did it?
South Korea's Joint Chiefs of Staff ran forensic tests. They found brown material on the soldiers' gear that matches what North Korea puts in its mines. And investigators have now found four mines at the site. Not two. Four.
Kang Shin-chul is South Korea's Defence Minister. He says it's certain North Korean troops crossed the border line to lay these mines. He says it was part of the North building up its side of the border.
Kang Shin-chul says quote "it appears they were planted as part of border fortification in front of the MDL".
That's South Korea's own defence chief saying North Korean soldiers walked onto southern ground to do this.
And the United Nations Command backs him up. It says it found an active North Korean landmine sitting on the South Korean side of the line. It says that breaks the armistice that ended the Korean War in 1953.
Here's why that armistice matters. It's the only thing keeping the two Koreas from being at war right now. They never signed an actual peace treaty. Not once, in 73 years.
Lt. Gen. Kang Hyun-woo runs operations for South Korea's Joint Chiefs of Staff. He's demanded North Korea apologise and take what he calls responsible measures.
North Korea says none of it happened.
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Contains modified MODIS satellite data showing the Korean Peninsula from space on May 5, 2026. MODIS Land Rapid Response Team, NASA GSFC · Public domain
Kim Yo Jong is Kim Jong Un's sister. She's a senior official in North Korea's ruling party. She calls the whole thing a farce. She compared it to 2015, when Seoul blamed the North for mines that wounded two South Korean soldiers near this same border.
Kim Yo Jong says the case reminds her of the 2015 wooden-box mine incident, given what she called the timing and method of this one.
And here's the part worth knowing. That 2015 incident didn't stay small. South Korea hit back with loudspeakers sending propaganda into the North. It ended with gunfire across the DMZ.
Kim Yo Jong has a warning too. She says North Korea will hit back immediately, and without mercy, if South Korean troops ever fire on North Korean soldiers working near the border.
So both sides are already drawing the line for how far this goes.
Two days after South Korea demanded that apology, North Korea fired a ballistic missile. It launched from the Wonsan area on its east coast. It flew more than 700 kilometres before landing in the sea.
North Korea hasn't linked the missile to the mines directly. But the timing says plenty on its own.
And this didn't come from nowhere. Back in 2024, Kim Jong Un called South Korea the North's main enemy. Since then, North Korea has been laying mines and building obstacles along the border.
One thing is still not settled. When were these mines actually put in the ground?
Investigators found grass growing on top of one of them. That points to it being over a year old. But four mines, found close together, also has investigators looking at something more recent and deliberate. They say they need more time to know which it is.
South Korea's President, Lee Jae Myung, has ordered a full investigation. He's also been trying, separately, to get North Korea back to the table for talks.
For now, North Korea denies crossing the line at all. South Korea says its forensics, plus the UN's own finding, say otherwise.
Nobody has said whether South Korea will go further than demanding an apology. And nobody can say yet if this is a one-off, or the start of something longer.
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