Editor's note: This story originally ran on May 21, 2018.

A city power outage alert in Lake Worth on Sunday caused concern in residents for its mention of zombies.

That’s correct. Zombies.

The message was sent during a power outage at about 1:45 a.m., but it also warned of “zombie alert for Lake Worth and Terminus,” potentially referencing the city in the zombie TV show “The Walking Dead.”

“There are now far less than seven-thousand-three-hundred-eighty customers involved due to extreme zombie activity,” the notice said.

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Lake Worth Live, a community Facebook page, said an update from the city indicated the message was unintended.

“We are looking into reports that the system mentioned zombies,” Ben Kerr, the city’s public information officer, said in the post.

“I want to reiterate that Lake Worth does not have any zombie activity currently and apologize for the system message.”

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According to the post, Kerr said 7,880 customers were affected and that power was restored within 27 minutes.

Push alerts have become common in our cellphone driven age, and this wasn’t the first to startle those who receive it.

In February, the National Weather Service sent out a monthly “test” notice as practice for warnings about tsunamis. Some of those agencies, including the AccuWeather service, responded by sending alerts to their customers saying a storm was imminent.

In January, an error sent a warning about an imminent ballistic-missle threat to residents of Hawaii.