Documents on Japanese captives sent off to Soviet labor camps after the war are being displayed at a self-funded museum in Tashkent owned by an Uzbek man who spent nearly 20 years building it.

"It is part of our history that Japanese people lived in our country," 71-year-old Jalil Sultanov said in a speech in Tokyo while visiting Japan in January.

The museum "serves as a bridge of peace and friendship between the two nations," he said.