ST. CHARLES, Mo. - Officials are at Ameristar Wednesday morning investigating a gas odor.

According to Spire spokesperson Jason Merrill, their teams are on the ground at the casino resort in effort to find the source of a gas smell.

First responders have the entrances blocked. Some vehicles are being let through while others are turned away.

No further details have been released.

This is a developing story. More will be posted as it comes into the FOX 2 newsroom.

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