CLOQUET — A school bus driver in northeastern Minnesota is charged with child endangerment after a 3-year-old boy was left alone on his bus for three hours in freezing temperatures.

Fifty-three-year-old Thomas Soderholm of Mahtowa is accused of endangering the boy Jan. 14. The boy was left on the bus after other children were dropped off at the Fond du Lac tribal Head Start building.

A Fond du Lac Transportation employee was walking by and noticed the boy waving and pounding on a bus window.

Fond du Lac Chairwoman Karen Diver said Soderholm is no longer employed by the reservation. She would not elaborate.

Soderholm has been summoned to appear on the gross misdemeanor on Feb. 4. A call to his home rang unanswered Friday night.