GLENDALE, Ariz. — The Glendale Elementary School District has temporarily closed two schools after finding that both campuses needed structural repairs to be safe to occupy.

District officials on Thursday received a letter from its structural engineer warning recent improvement projects at Challenger Middle School and Landmark School uncovered structural deficiencies in the schools’ buildings.

Officials said Monday that the two schools will be closed for up to five weeks as a precautionary measure.

Classes at the schools are canceled through Wednesday for the 1,450 displaced students.

District officials say Landmark students will attend half-day classes starting Thursday morning at Desert Spirit School while Challenger students will go to Bicentennial Middle School beginning Thursday afternoon.

The split schedules for students at the four schools will not include enrichment subjects like music and art.