A school official notified parents of Bus 1 in a letter March 7 that the regular driver of the bus was pulled from duty for violating bus company policy.

A substitute driver is now assigned to Bus 1, said Maria Coleman, director of human resources and general administration for the schools.

Student Transportation of America, the bus service provider, has confirmed to the school district  the former driver will no longer drive any bus for Wilton, Coleman said.

The Wilton Police Department confirmed March 9 they are investigating the case.

School officials could not be immediately reached to comment on the type of policy that was broken.

Parents with questions are asked to call Fran Williams at 203-762-3381, ext. 8295.