Canadian transportation officials say there will be no more one-man crews for trains with dangerous goods after an oil train derailment in Quebec that killed nearly 50 people.

François Laplante-Delagrave/AFP/Getty Images

Transport Canada also said trains with dangerous goods will not be allowed to be left unattended on a main track. The emergency directives take effect Tuesday.

There have been calls for tougher regulations since the July 6 tragedy, where a runaway train carrying 72 carloads of crude derailed and several cars exploded.

The unattended Montreal, Maine & Atlantic Railway train was parked overnight on a rail line before it came loose, hurtling down an incline and slamming into downtown Lac-Megantic.

Transport Canada says the cause remains unknown. Canada's Transportation Safety Board continues to investigate.

 

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