Fox News website

An internal error caused Fox News' website to display fake headlines Tuesday morning. (Salvador Rodriguez / Los Angeles Times)

Zombies are coming, according to the Fox News website Tuesday morning.

The news outlet's homepage accidentally displayed numerous fake but funny headlines Tuesday morning after accidentally turning live a homepage prototype. Initially, many believed Fox News' website had been hacked.

For about half an hour, FoxNews.com featured the headline "World Zombie Day to Bring Out the Living Dead" as well another saying Apple unveiled a "Maverick Sea Lion" at its developers conference. The main story, meanwhile, featured "Weeeeeeee" for its headline and "Stuff yo" for the story description.

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“During routine website maintenance, a homepage prototype was accidentally moved to the actual site," Fox News Chief Digital Officer Jeff Misenti said in a statement. "As with any mistake in testing, engineers noticed the error and quickly brought the site back to its normal function."

And as expected, the mistake sent the Twittersphere into a craze. Here are some of the best tweets:

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