Two managers at Nagoya Railroad Co. were arrested Wednesday on suspicion of ordering a bus driver to cover for a colleague whose bus was involved in a minor accident and whose license had expired.

Shigeru Uno, 50, who was chief of services, and Shigeharu Matsui, 57, who headed marketing, were supervisors of the two drivers at the Okazaki bus operations office of Nagoya Railroad, which is known as Meitetsu, at the time of the accident, Aichi Prefectural Police said.

Uno was in charge of drawing up drivers' shifts, checking their health and keeping tabs on operating records. Police said both supervisors have basically owned up to the charge.

Police have also found the two managers reported the incident and the attempted coverup to a 59-year-old manager at the company's head office, but this manager did not report it to those above him. It was also learned that Meitetsu did not tell Aichi police that this manager was aware of the coverup.