South Korean President Park Geun-hye asked North Korea to apologize on Monday for a recent landmine attack amid ongoing top-level negotiations between the two rival nations trying avoiding a war on the Korean peninsula. Park also threatened that South Korea's cross border propaganda broadcast would continue until North Korea issued a clear apology, according to Yonhap.

"We need a clear apology and measures to prevent a recurrence of these provocations and tense situations. Otherwise, this government will take appropriate steps and continue loudspeaker broadcasts," said Park, according to BBC.

Park's remarks came on third day of emergency talks between the two sides aimed at avoiding a possible war on the Korean peninsula, according to VOA News. The top-level talks, first in years, began Saturday in historic "truce village" of Panmunjom near the highly fortified border between both sides.

South Korean National Security Adviser Kim Kwan-Jin and Unification Minister Hong Yong-Pyo are continuing to hold ministerial-level talks with North Korean military's top political officer Hwang Pyong-so and the official in charge of inter-Korean affairs, Kim Yang-gon, at Panmunjom.

The South Korean military, however, said North Korea is continuing to prepare for a war, moving a number of troops and submarines to the border.

"More than 50 North Korean submarines are apparently away from their bases for operations, a sign that the North is gearing up for combat while participating in high-level talks aimed at easing tension," a South Korean military official said Sunday, according to HNGN.