CHIPPEWA FALLS, Wis. -

A school district in western Wisconsin says hackers have stolen nearly $150,000 after breaking into its payroll system.

The La Crosse Tribune reported the hackers targeted the Stanley-Boyd School District in Chippewa County.

Superintendent Jim Jones said the hackers apparently accessed direct-deposit files from the Nov. 23 payroll. He said the district's liability insurance will cover the loss.

The district's payroll services are handled by Anchor Bank. Anchor spokeswoman Jennifer Ranville said the bank is helping district employees close out their accounts and open new ones in case their account information was compromised.

She said no other Anchor Bank customers were affected.

Jones said the district is working with bank officials to improve the payroll system's security.

The FBI is handling the investigation.