Truck spills 3,500 gallons of chocolate across Arizona highway

Safety officials in Arizona said around 3,500 gallons of 120-degree liquid chocolate spilled onto I-40 on Monday. (Arizona Department of Public Safety)

Flagstaff, Arizona turned into Willy Wonka's chocolate factory on Monday when a tanker truck spilled 3,500 gallons of it across Interstate 40.

The "river of chocolate" flowed onto the highway's westbound lanes east of Flagstaff near the 211-mile marker, the state's Department of Public Safety tweeted.

An error occurred while retrieving the Tweet. It might have been deleted.

The tanker was transporting around 40,000 pounds of 120-degree liquid chocolate, officials said.

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It was not immediately clear why the truck rolled over or when the mess was fully cleaned up.