Saturday's extreme heat caused a Twin Cities area road to buckle. The video below shows cars hitting the buckle and flying into the air. Thankfully no one was injured.

The footage was caught by a Minnesota Department of Transportation camera on the westbound lanes of Highway 36.

MnDOT crews spent much of Saturday evening repairing the road.

So how does heat buckle pavement?

Grace Muller from accuweather.com explains, "Intense heat deforms the surface of the road. Pavement expands in the heat but there is no place for it to expand. The pavement pushes up off the ground at its weak spots. The risk is greatest for roads buckling when the temperature is over 90 to 95 degrees."

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