Two gangsters were shot and killed and five others were injured, one seriously, during a flareup in a rightist group's office Monday afternoon in Tokyo's Chiyoda Ward.

Tetsuo Nagashima, 52, and Hideo Takahi, 49, members of a gangster group associated with the Sumiyoshi-kai underworld organization were killed. Of the five injured, four were from the crime gang and one from the rightist group Sofusha (Blue Wind Group), police said.

The gangsters and rightists are both affiliated with Sumiyoshi-kai, police said.