Police arrested one of the customers on suspicion of arson and attempted murder,
The blaze broke out at about 3 a.m. (1800 GMT) in the Cats Adult Video Theater, located on the ground floor of a seven-story building in an entertainment district in Japans second-largest city, fire department official Yuko Kotani said.
Hirami said officials were still trying to determine the identities of the 15 dead. Officials said 10 of the injured were being treated at a nearby hospital, and several were in serious condition.
When the fire started, most of the theaters 32 viewing cubicles - each equipped with a cot, a television and a DVD player - were occupied.
The video center offered a wide selection of DVDs, mostly adult movies, but also cartoons and
A growing number of young people whose low-paying jobs cannot pay for proper housing live in such all-night lounges watching videos or reading comic books.
In 2001, a building fire in