Massive fire erupts at a St. Louis warehouse

ST. LOUIS (Sinclair Broadcast Group)- A major warehouse has caught fire east of downtown St. Louis. The city's Fire Department has classified the blaze as a five-alarm fire.

The department also stated through social media they believe the fire is in the basement of the building due to a "large quantity of magnesium." One worker was transported to a hospital due to smoke inhalation.

We will continue to update this story with the latest.