Emergency services are at the scene of a train derailment Thursday morning on Montreal's south shore, where they are urging citizens to stay away from the area.

A Washington State Department of Ecology spokesperson is updating the estimate of how much diesel fuel spilled near the Columbia River when a Union Pacific freight train derailed early Wednesday

People in a part of Longueuil, Que., were being asked to stay indoors with their doors and windows closed on Thursday morning after a train derailed, spilling an unknown quantity of hydrogen peroxide.

The City of Longueuil issued an update on its website around 4:30 a.m. Friday to let residents know the lockdown was no longer in effect.

Longueuil police say it doesn’t initially appear anyone was hurt, but fire officials are dealing with a hydrogen peroxide spill