NEW ORLEANS (AP) — An audit report says the state Recovery School District, which oversees most New Orleans public schools, needs to improve its oversight of some school rebuilding efforts.Among criticisms in the audit released Monday by the Legislative Auditor was a finding that some changes approved for contracts after they were signed added overhead costs and profits for contractors that exceeded allowable amounts.

The audit also found that three out of 120 samples of concrete used for one elementary school appeared to be below the required design strength.

The Recovery School District, in a response released with the report, said it agreed with many of the findings and recommendations in the report and is already taking steps to address them.