SHERIDAN TOWNSHIP, Mich. (AP) — The stepfather of a 7-year-old Michigan boy who drove a car for 20 miles, sometimes hitting speeds of 50 mph, says the child's family doesn't understand why he tried to drive to his father's home.

The stepfather told the Detroit Free Press for a story Thursday that the boy had just seen his father a day earlier on Father's Day.

The boy told authorities he took his stepfather's car from his home in Huron County's Sheridan Township on Monday because he wanted to visit his father who lives about 13 miles away.

He was charged Wednesday as a juvenile with unlawful use of a vehicle.

The Associated Press isn't naming the stepfather to avoid identifying the boy. The AP typically doesn't identify those charged as juveniles.

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Information from: Detroit Free Press, http://www.freep.com