India, Oct. 27 -- Tensions between North Korea and South Korea have escalated after Pyongyang accused Seoul of fabricating a landmine incident near their heavily fortified border and warned of consequences for any violation of its sovereignty. The latest exchange comes as North Korean artillery vehicles were reportedly spotted near the border, raising concerns over a possible military confrontation.

In a letter to the United Nations Security Council on Sunday, North Korea rejected South Korea's allegations over a September landmine explosion and accused Seoul of portraying its border construction activities as a military incursion.

The developments also come amid increased military activity along the Demilitarised Zone (DMZ), which sepa...