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Most oil refinery victims treated and released, 1 remains hospitalized

Refinery workers evacuate the area during a series of fires and explosions at the Calumet refinery in Superior, Wis. Thursday, April 26, 2018. Clint Austin / Forum News Service

DULUTH -- Essentia Health said Friday, April 27, that its Duluth and Superior, Wis., hospitals treated a total of 16 victims related to the Husky Energy refinery explosions and fires the previous day.

All patients have been released, except one listed in good condition Friday morning. St. Luke’s hospital in Duluth confirmed treating one patient Thursday.

The Husky Energy oil refinery sustained a series of explosions and fires rocked the Husky Energy oil refinery, forcing massive evacuations and sending several people to local hospitals.

No fatalities were reported, and all employees and hundreds of contractors working at the refinery were accounted for.

No details were available on the extent of refinery damage or what caused the initial explosion that occurred just after 10 a.m., apparently in a tower near giant asphalt storage tanks. One of those tanks was punctured, spewing liquid asphalt onto the ground for hours.

A second, larger fire erupted just after noon with multiple explosions throughout the afternoon, sending a much bigger black cloud billowing for miles.