more on the train derailment:

Major train derailment and fire near Wadena, Sask. http://t.co/Hjuv721BJM pic.twitter.com/PdiXC07Kgr

— CBC News (@CBCNews) October 7, 2014

from the link:

Officials are worried about toxic smoke from the burning cars and are keeping people eight kilometres from the scene.

A spokesman for CN said the train was hauling 100 cars, 26 which derailed.

Six of them contained hazardous materials, including four that had either hydrochloric acid or caustic soda.

The other two had petroleum distillates, CN said.