Quebec train blast: Criminal inquiry launched
10 July 2013 Last updated at 06:58 BST
A criminal inquiry has been launched in Canada into the derailment of an oil train that killed at least 15 people in a small Quebec town on Saturday.
Quebec police inspector Michel Forget said investigators had found evidence leading them toward a criminal probe.
The runaway train derailed in the town of Lac-Megantic, exploding and destroying dozens of buildings.
David Willis reports.