A mobster and a construction worker were stabbed to death and four other people were wounded early Monday in Mikumo, Mie Prefecture, police said.
Police identified the deceased as Kazuya Ogura, 39, a senior member of a gang affiliated with Yamaguchi-gumi, Japan's largest underworld organization, and construction worker Kiyoto Takahashi, 33.
According to police, Ogura and Takahashi were stabbed when they and five to six others quarreled with at least two other men in the parking lot of a game parlor at around 2 a.m.
At 2:05 a.m., police received an emergency call from an unidentified man. When medics rushed to the scene, a man, bleeding from his head, told them there were others who were injured. The man then left the scene.