Nikon Corp. canceled its planned photo exhibition of wartime sex slaves for "various reasons," the major camera maker has announced.

Although Nikon declined to state the specific reasons for the cancellation, a company spokesman admitted it received a number of complaints about the event, which was to be held from June 26 to July 9 at Shinjuku Nikon Salon in Tokyo's Shinjuku Ward. The photos were taken by South Korean photographer Ahn Sehong.

"We received complaints by mail and telephone, but we cannot comment on how many complaints we got or the nature of the complaints," said the spokesman, who asked not to be named.