North Korea said Wednesday it was cutting off an important military hotline with South Korea amid high tensions between the two sides.

"Under the situation where a war may break out any moment, there is no need to keep north-south military communications," the head of a North Korean delegation told the South by telephone on Wednesday, according to the North's state-run Korean Central News Agency.

Earlier this month, Pyongyang disconnected a humanitarian hotline that ran through the border village of Panmunjom, according to the South Korean Unification Ministry.