The Dai Ichi Daihoumaru Ship Incident (第一大邦丸事件 [Dai Ichi Daihoumaru jiken] refers to an incident where the South Korean Coast Guard shot and killed Seto Jujiro (瀬戸 重次郎), the head fisherman of the Japanese Dai Ichi Daihoumaru ship on February 4, 1952. Below is a translation of the Japanese version of the incident. On January 22, 1953, two fishing vessels respectively named “Daiichi Daihou Maru and Daini Daihou Maru of Taihou Fisheries Company left Fukuoka, Japan for fishing operations. By February 4, they arrived at No. 284 fishing zone in international waters near Jeju Island.