Disasters

Smoke from Superior refinery explosion poses health risk
An explosion and asphalt fire at a Wisconsin oil refinery sent huge plumes of smoke into the air that pollution experts said almost certainly contained large amounts of toxins, posing a serious health risk to those living downwind.
Photos: Smoke, tension and evacuations follow Superior refinery fire
A refinery fire that generated blasts and explosions throughout the day generated a huge plume of black smoke, prompting evacuations of a three-mile radius around the refinery, as well as a 10 mile corridor south of it in the path of the smoke.
Husky Energy refinery blast in Wisconsin: What we know
The aftermath of a series of explosions and fires at the Husky Energy oil refinery in Superior, Wis., Thursday left thousands evacuated into Friday morning. Here is what we know.
Superior refinery explosion: Fire extinguished, evacuation order lifted
Firefighters extinguished a blaze at a refinery that sent heavy noxious black smoke into the air for nearly eight hours Thursday that forced a massive evacuation in Superior, Wis.
Authorities say the homeowner called for help about 8 p.m. Tuesday when the fire broke out. Three occupants of the house escaped the fire. But, a 24-year-old man who was sleeping in an upstairs bedroom died in the fire.
Motive elusive after van driver kills 10 on Toronto sidewalk
Police in Canada's biggest city are piecing together witness accounts and surveillance video trying to determine why a driver plowed a rented van along a crowded sidewalk, killing 10 people and injuring 15 in what many said seemed a deliberate attack.