According to the Gibson County Sheriff’s Office, dispatch received several calls about the derailment in the area of Old U.S. 41 around 7:40 p.m.

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Emergency responders went door to door, asking neighbors and business owners within a 1-mile radius of the derailment to evacuate.

It is unknown if there are any injuries.

Freight train derailment causes explosion, prompts mandatory evacuations in Indiana. https://t.co/hiqZf4NTQwpic.twitter.com/ydOgMDTpig

— ABC News (@ABC) June 18, 2018

Princeton is approximately 40 minutes north of Evansville.

The investigation into what caused the derailment is ongoing.