![International Top Stories from Associated Press (AP) show](/assets/missing_small.png)
Summary: LAC-MEGANTIC, Quebec , Canadian authorities have opened a criminal investigation into a deadly oil train derailment that killed at least 15 people over the weekend. Quebec police inspector Michel Forget told a news briefing Tuesday that investigators have "discovered elements" that have led to a criminal probe. Forget did not give details, but he ruled out terrorism.