JEFFERSON CITY, Mo. (AP) — The Missouri State Highway Patrol alert sent cellphones blaring statewide: Authorities in Gotham City, Missouri, were searching for a purple and green 1978 Dodge 3700GT.

But there is no Gotham City, Missouri, and the car referenced was the one used by the Joker in the 1989 “Batman” movie. Soon after the Tuesday evening alert, the patrol sent another saying to disregard it.

In a brief news release, the patrol said a routine test of Missouri’s Blue Alert system was inadvertently transmitted statewide. The system is meant to let the public know when a police officer is killed or seriously injured in the line of duty.

“During the test, an option was incorrectly selected, allowing the message to be disseminated to the public,” the news release stated. A message left with patrol on Wednesday seeking additional information wasn’t immediately returned.

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