The father of a Japanese woman who reportedly committed suicide in North Korea after being abducted to the country urged the government Saturday to conduct full investigations into her whereabouts.

The woman, Megumi Yokota, went missing from Japan in 1977 and is said to have killed herself in North Korea in 1993. Her father, 70-year-old Shigeru Yokota, made his plea after hearing a Kyodo News report that his daughter was alive in 1997.

"I cannot simply say, 'Oh, it's nice to hear that,' as I don't know how credible this information is," Yokota said. "I can only hope that the government will fully investigate the case as soon as possible."