(AP) Maine’s largest school district said a one-day shutdown of one of its elementary schools due to a coronavirus outbreak has ended.

Lyseth Elementary School in Portland was closed Monday because of nine cases of the virus reported at the school last week. The district said eight classrooms at the school will remain closed for at least a couple more days as it works to find out if there has been any exposure in those classrooms.

The district said the Lyseth cases seem to be connected to a child care facility in the neighborhood. The cases resulted in 38 close contacts at Lyseth, the district said.