North Korean leader Kim Jong-un lays a wreath at the Friendship Tower to pay tribute to the fallen Chinese soldiers fought in the war, Thursday, in this photo released by the North's state-run Korean Central News Agency (KCNA) the following day. Yonhap

North Korean leader Kim Jong-un said his country's ties with China, "sealed in blood," will further develop for generations to come as he marked the anniversary of the armistice that halted the 1950-53 Korean War, state media said Friday.

On Thursday, Kim visited the Friendship Tower in Pyongyang and paid tribute to the fallen Chinese soldiers that fought in the war, the Korean Central News Agency (KCNA) said.

The Korean War armistice was signed July 27, 1953, a little over three years after the North invaded the South, backed by China and the then Soviet Union. Calling the conflict the Great Fatherland Liberation War, the North has designated the anniversary as Victory Day.

Kim stressed that the "brilliant combat merits and feats of the Chinese People's Volunteers (CPV) officers and men, obviously recorded in the history of the great victory in the Fatherland Liberation War, would be immortal," according to the KCNA.