South Korean survivors of the atomic bombings of Hiroshima and Nagasaki plan to have documents related to their ordeals registered in the Memory of the World register, a UNESCO archive, a group that promotes their rights said Thursday.

"We want to join hands with Japanese survivors in an effort to let our sufferings be better known," said Won Jeong-bu, who heads the group.

The bid is aimed at raising awareness of their plight worldwide, including in their home nation. It may give the group more ammunition in its bid to extract compensation from the governments of South Korea and Japan.