An electronic road sign in central Arizona was hacked to display an anti-Semitic message.

The sign in Pinal County early on Friday morning was altered to read “Hail Hitler,” which, though spelled incorrectly, is believed to refer to the Nazi salute, the Arizona Republic reported.

The Pinal County Sheriff’s Office received the first call complaining about the sign at about 2:30 a.m. local time.

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Officers attempted to turn off the sign, owned by an unnamed private company, but it required a password. County crews covered the sign for several hours until the company could be reached and the sign was turned off, according to the report.

The sheriff’s office said it could not investigate the incident as a hate crime since no individual victim was targeted.