By Kim Bo-eun

South and North Korea discussed holding an event to commemorate the 11th anniversary of the Oct. 4 Declaration reached at the second inter-Korean summit in 2007.

The event will be held in Pyongyang from Oct. 4 to 6, the two sides agreed in a meeting that took place Friday at the inter-Korean liaison office that opened earlier this month in the North's city of Gaeseong.

The meeting took place between liaison office co-heads Vice Unification Minister Chun Hae-sung and his North Korean counterpart Jon Jong-su.

They agreed for the South to send a 150-member delegation to the event. South Korean Unification Minister Cho Myoung-gyon is set to head the delegation.

The South and North agreed to address logistics, as well as discuss carrying out agreements reached at the inter-Korean summit in Pyongyang last week, through the joint contact office.

The office opened to facilitate inter-Korean communication and is the first organization in which South and North Koreans work together in the same building. It was established according to the Panmunjeom Declaration reached between President Moon Jae-in and North Korean leader Kim Jong-un in their first summit in April.

The co-heads Chun and Jon held their first meeting on Sept. 14 when the office opened. They held their second meeting Friday. The office chiefs of the South and North agreed to hold a meeting once a week, but skipped their meeting last week due to the inter-Korean summit in Pyongyang.

Holding an event commemorating the Oct. 4 Declaration is among the agreements reached between leaders at their third summit last week.

The Oct. 4 Declaration was reached between President Roh Moo-hyun and North Korean leader Kim Jong-il ― the current leader's father.

The leaders agreed to improve inter-Korean relations, ease military tension and work toward North Korea's denuclearization. They also agreed to make efforts to boost inter-Korean economic projects and push for humanitarian projects including reunions of families separated by the 1950-53 Korean War.