1.   Domestic media have reported that the mahjong club may have had trouble with gangsters.

2.   Investigators believe the fire broke out by a stairwell outside the mahjong club on the third floor of the four-story building.

3.   The fire is believed to have broken out near a stairway outside a cramped mahjong club on the third floor of the building.

4.   The owner of the third-floor mahjong club reportedly heaped old newspapers, hand towels and other garbage there.

5.   Three survivors who were in the mahjong club had to jump the three stories to the ground below.

6.   Three survivors jumped three stories from the mahjong club to the ground below.