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PANMUNJON, SOUTH KOREA - AUGUST 22: In this handout image provided by South Korean Unification Ministry, South Korean National Security Adviser Kim Kwan-Jin (R), South Korean Unification Minister Hong Yong-Pyo (2nd R), Kim Yang-Gon (2nd L), the top North Korean official in charge of inter-Korean affairs, and Hwang Pyong-So (L) the North Korean military's top political officer, shake hands during the inter-Korean high-level talks at the truce village of Panmunjom inside the Demilitarized Zone on August 22, 2015. (Photo by South Korean Unification Ministry via Getty Images)
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Story highlights

NEW: Second day of talks begin at "truce village" in Demilitarized Zone

NEW: S. Korean military officials say their North counterparts are beefing up artillery, sub patrols

(CNN) —  

North and South Korea resumed talks at the historic “truce village” Sunday in a bid to ease tensions and heated rhetoric that escalated last week.

The high-level talks included from the North, Kim Jong Un’s deputy, Hwang Pyong So, a member of Kim Jong Un’s inner circle and political director of his country’s army; and Kim Yang Gon, a veteran of negotiations with South Korea since Kim’s father, Kim Jong Il, ruled the secretive regime.

Also present was Kim Yang Gon, a veteran of negotiations with South Korea since Kim’s father, Kim Jong Il, ruled the secretive regime.

Korea watchers point to the seniority of the two men, particularly Hwang, as an indication of the North’s intentions.

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Professor David Kang of the University of Southern California’s Korean Studies Institute said it was significant that Hwang was there.