TOPEKA, Kan. (AP) — The agency that administers math and reading tests for Kansas schools says the state should not release some of this year’s test scores.

The Center for Educational Testing and Evaluation at the University of Kansas told the Kansas State Board of Education Tuesday that the test results were compromised by cyberattacks and technical problems this year.

The Topeka Capital-Journal reports the state usually releases test data that show how students performed in each grade and at specific schools and school districts.

Marianne Perie, director of the testing center, recommended that state-level scores be released, but school and district-level results should be withheld.

This year’s tests were a new form, and many schools encountered technical problems that disrupted administering them. Those problems were followed by outside cyberattacks.