At least 15 people were injured and thousands of nearby residents were evacuated following an explosion at a refinery in the US yesterday.
A fire blazed for several hours after the incident at Husky Energy’s site at Superior, Wisconsin.
Local media report 15 people were injured but no fatalities, while all of the refinery’s workers are now accounted for according to Husky.
The firm said that after an initial blaze, a storage tanker was punctured causing a second fire, which has now been extinguished.
Tests are currently being carried out on air quality in the region, the evacuation order remains in place.
Calgary-Alberta-based Husky Energy refinery bought the refinery from Indianapolis-based Calumet Specialty Products Partners last year for over 490 million. It is Wisconsin’s only refinery, and it produces gasoline, asphalt and other products.
The refinery, which dates back to the early 1950s, has a processing capacity of around 50,000 barrels per day and a storage capacity of 3.6 million barrels of crude and products. It processes both heavy crude from the Canadian tar sands in Alberta and lighter North Dakota Bakken crude.