OSAKA-- Kansai's major private train firms said Tuesday they are reviewing safety procedures in the wake of the train crash near Amagasaki in Hyogo Prefecture that killed 73 and injured more than 450.

They will wait, however, until the cause of the West Japan Railway Co. train crash is clear before taking any concrete measures, they said.

Passengers said the lesson learned from the accident was to speak out if they think there is something wrong with the train driver.