First responders were sent to The Andersons grain elevator in Delphi, IN early Monday after a fire broke out in a large filter canister that spread flames to conveyors and an attached storage silo, according to local fire officials.

Dispatched to the scene around 6:40 a.m., crews worked for about three hours to contain the flames, a post on the Delphi Fire Department page on Facebook said. No injuries were recorded during the incident and all workers were accounted for.

The grain silo collapsed several hours after the fire began, forcing firefighters to return to the scene around 1:40 p.m., the Pharos Tribunereported. Thousands of tons of grain spilled out from the container. A company truck was crushed when the vessel fell.

Some conveying equipment received damages during the collapse, local news broadcaster WLFI said. Officials have opened an investigation into the cause of the incident.

“Due to a bin collapse at our Delphi facility on September 19, the facility is currently closed for deliveries,” a statement on The Andersons website read, adding, “Thank you for your patience during the beginning of a busy harvest season while we focus on assessing the damage and ensuring the safety of the site.”

The Anderson’s Delphi site handles corn, wheat, and beans.