A dozen gangsters affiliated with the underworld group Kudo-kai have been arrested in connection with the fatal drive-by shooting of a construction company executive in November 2011.

Toshihiro Uchino, 72, chairman of Hakushin Kensetsu, was shot to death in front of his home in Kitakyushu on the night of Nov. 26, 2011.

The police suspect Futoshi Urita, a 53-year-old senior member of the yakuza group, conspired with the others to kill him.