HALIFAX, Pa. -- A Harrisburg-area elementary school will likely be closed another three weeks as officials there clean up mold, said James Dull, the superintendent of Halifax Elementary School.

Students in grades two through five will begin the school year in four churches on Wednesday; the building has been closed since Monday.

Other Halifax schools are open as usual.

The cleanup is being done at the recommendation of Analytical Laboratories Incorporated, which studied the building.

Mold was first suspected in the building during a teachers in-service day Aug. 27 and later identified through testing.

School officials said the problem was caused by the air-conditioning system's keeping the building too cool.