Fire broke out in a Moscow nightclub early Sunday, killing 10 people, an Emergency Situations Ministry spokesman said. The cause of the blaze had not been determined, but some witnesses said it broke out during a "fire show" that was part of the club's nightly entertainment, said Yevgeny Bobylev, a spokesman for the Moscow division of the Ministry. The preliminary accounts indicated that a performer in the show inadvertently set his clothing on fire and that in turn ignited a nearby one-gallon container of flammable liquid, Bobylev said. He said all the deaths were due to suffocation. About 150 people were evacuated, including four who were hospitalized, the Associated Press reported.