FLINT, Mich. — The Michigan attorney general’s office says a member of its team investigating Flint’s crisis with lead-tainted water has resigned after being arrested on suspicion of drunken driving.

The office of Attorney General Bill Schuette says Ellis Stafford was arrested Saturday night in Wayne County. In a statement, Schuette thanked Stafford “for his efforts” on the Flint water investigation and says he’s praying for Ellis and his family.

A spokeswoman for Schuette says Monday morning she doesn’t know whether Stafford has a lawyer who could comment.

Schuette’s office say the arrest was made in Canton Township, a Detroit suburb. Police there didn’t immediately release information on the case.

Stafford, a Flint native, was deputy chief investigator on the Flint investigation. He’s a former Michigan State Police inspector.