Prosecutors say 45-year-old John Allen Wright, who used to work for Provider Enterprises Inc. transporting disabled children, was arraigned Wednesday in federal court in Concord on charges of possessing child pornography and five counts of sexual exploitation of children. A not guilty plea was entered on his behalf.

Authorities in Maine have alleged just one victim, but federal authorities say there may be three victims.

The Milton man was ordered to undergo a mental health evaluation at the request of his lawyer.

Federal prosecutors say at least two alleged victims were in Wright’s care, and explicit videos were made.