Police have seized radios in connection with a train accident that killed four workers on the tracks north of Tokyo, an investigative source said Sunday, as they seek to determine whether the communication devices were used properly.Police in Tochigi Prefecture searched a Tobu Railway Co. group company Sunday on suspicion of professional negligence resulting in death.The police suspect the group company, Tobu Kensetsu based in Nikko in the prefecture, failed to ensure the safety of the workers due to poor coordination, seizing 30 items in total including contract documents.They plan to exam…READ FULL ARTICLE
