A municipal official in Edmundston, N.B., says crews are emptying one of five freight cars that is carrying liquid butane after they derailed in the city.
City general manager Marc Michaud says firefighters and special work crews from CN are at the scene of the derailment in the community of Saint-Basile and they report the situation to be under control.
Michaud says there is no leak nor fire and while about 25 residents who live within a 250-metre radius of the derailment were placed on alert, none of them have been told to leave their homes.
He says it's not known what caused the cars to leave the tracks late Sunday.
The derailment is the second in the province this month.
On Jan. 7, a CN freight hauling crude oil derailed near Plaster Rock, sparking a fire that burned for several days.