Union Pacific officials investigate train derailment in Tama Co.

A derailment involving a Union Pacific train hauling sugar and soda has shut down X Avenue in Tama County.

Union Pacific officials said 28 cars were involved and there were no hazardous materials.

Tama County officials said X Avenue will be closed for about a day as crews work to clean up the mess.

There were no injuries.

It's unclear as to what caused the train to derail.