The refinery that exploded and caught fire in late April in Superior, Wis., is a multinational company whose major shareholder is the 23rd richest man in the world.
Husky Energy officials said hydrogen fluoride did not leak during the incident last Thursday. But had the tank ruptured, it could have been devastating for anyone caught downwind. The acid can travel in a cloud for miles and can eat into skin and other tissues.
The Minnesota Interagency Fire Center says the blaze that began Sunday evening remains very active due to westerly winds. The fire is burning about 15 miles northwest of Greenbush in Roseau County.
About 50 families had lived as squatters in the 26-story building in downtown Sao Paulo since it was abandoned as the headquarters of the federal police, reports said.
"It started rather quickly and spread. When you get a large amount of heat like that, we had wind," firefighter Dan Sertich recalled. "All the elements were there to really get that going. And for us, you don't know what's burning."
St. Paul police reported that the rockslide occurred at about 3:30 p.m., from the cliffs above Wabasha Street between Plato Boulevard and Cesar Chavez Street.
Go Deeper.
Create an account or log in to save stories.
Like this?
Thanks for liking this story! We have added it to a list of your favorite stories.
When it comes to staying informed in Minnesota, our newsletters overdeliver. Sign-up now for headlines, breaking news, hometown stories, weather and much more. Delivered weekday mornings.