More than 100 mourners gathered Tuesday in honor of the victims of an uprising at a labor camp in northern Japan during World War II.

Those present included 87-year-old Chinese survivor Zhang Guangxun and relatives of some of the more than 400 forced laborers who died in harsh conditions or through torture at the Hanaoka mining camp in Odate, Akita Prefecture.

Some of those present who addressed the gathering described mixed emotions.