MINNEAPOLIS (WCCO) – Weather officials say heavy frost on metro roadways Sunday morning led to several accidents and spinouts.

The National Weather Service says that bridges are particularly slick and hazardous.

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Forecasters say the slick spots were created as warm, moist air moved over the state and came into contact with the cold metro roadways.

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The Minnesota State Patrol says that from 6:30 to 11:30 a.m. Sunday, there were 40 crashes reported around the Twin Cities metro. Of those, six involved minor injuries. There were also 11 vehicles that either spun out or went off the road.

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Sunday’s highs look to reach around 40 degrees in southern Minnesota. The warmth comes after two days of bitter December cold.