KEARNEY, Neb. (AP) — Hackers broke into the Central Platte Natural Resources District’s computer system, but officials don’t believe anyone’s identity was compromised.

But the irrigation district has hired experts to determine exactly what data was accessed about three weeks ago.

General Manager Lyndon Vogt says it doesn’t look like hackers got into the database with Social Security numbers, names and addresses of people served by the natural resources district.

Vogt says the hackers disabled the computer system’s antivirus software and planted a virus. But no data was lost because of an automated back-up feature that runs every 15 minutes.

A report on the hacking is expected by mid December.