South Korea commemorated wartime Korean forced laborers at Japan’s Sado gold mines in a ceremony Monday, a day after boycotting a similar event organized by Japan, as tensions over historical atrocities continue to strain relations between the two sides.

After boycotting one organised by Tokyo, South Korea held its own memorial event on Monday for compatriots forced to work in a Japanese mine during World War Two, highlighting lingering sensitivities between the countries.

Japan will hold a memorial ceremony near the Sado Island Gold Mines, which were listed this summer as a UNESCO World Heritage site after the country moved past years of disputes with South Korea and reluctantly acknowledged the dark side of their history.

By Jack Kim SEOUL (Reuters) -After boycotting a memorial event organised by Tokyo, South Korea held its own on Monday to remember compatriots forced to work in a Japanese mine during World War Two, highlighting lingering sensitivities between the key U.

South Korea's government says it has decided not to attend a memorial service near Japan's Sado Island Gold Mines due to unspecified disagreements with Japan over the event, which stirred longstanding tensions over the abuse of Korean forced laborers at the site before the end of World War II.

Efforts by South Korea and Japan to hold a joint memorial service near Japa’s Sado Island Gold Mines, where Koreans were forced to work during Japan’s colonial rule, fell apart on Nov. 24 due to disagreements between both governments.

The Korean government held its own ceremony on Monday to honor Korean wartime forced laborers at their former lodgings near Japan’s Sado Mine, following Seoul’s decision to boycott a Japan-hosted memorial held on Sunday.