The Canadian Press on MSN

Propane-leaking Zamboni set off chain reaction blast in Alberta arena: officials

Officials in the southern Alberta town of Taber say it was a leaky Zamboni that set off a chain reaction fireball blast ...

Explosion in Alberta town’s arena caused by propane leak: Taber officials

While the Town of Taber has determined the cause of an explosion that caused extensive damage to the community centre last ...
The Boston Globe

Tennessee explosives plant blast that killed 16 people was a chain reaction felt 20 miles away

McEWEN, Tenn. (AP) — A massive blast at a Tennessee explosives plant that killed 16 people, leveled the building and was felt more than 20 miles away began in an area where workers used kettles to ...
AOL

Tennessee factory explosion that left 16 dead was a chain reaction felt 20 miles away

A massive blast at a Tennessee explosives plant that killed 16 people leveled the building and was felt more than 20 miles away began in an area where workers used kettles to produce a mixture of ...