N. Korea sends letter to UNSC calling DMZ mine blast S. Korean fabrication

What happened: North Korea sent a letter to the UN Security Council president calling the September 21 DMZ land mine blast a South Korean fabrication, days after South Korea sent its own letter on the incident. Key numbers: The blast occurred on Sept. 21 and injured three South Korean soldiers. Why it matters: The exchange of letters comes amid heightened inter-Korean border tensions, with the North threatening to resume loudspeaker broadcasts and warning it would exercise its right to self-defense under Article 51 of the UN Charter.

North Korea sent a letter to the UN Security Council president calling the September 21 DMZ land mine blast a South Korean fabrication, days after South Korea sent its own letter on the incident.

The exchange of letters comes amid heightened inter-Korean border tensions, with the North threatening to resume loudspeaker broadcasts and warning it would exercise its right to self-defense under Article 51 of the UN Charter.