Another CN freight train has derailed in New Brunswick, the second to run off the tracks in the province this month.

The train derailed late Sunday night in the Edmundston-area parish of Saint-Basile in northwestern New Brunswick.

Conflicting reports as to how many cars have derailed have surfaced.

Five cars derailed, including one containing dangerous flammable gas, Jacques Doiron, emergency measures co-ordinator for the City of Edmundston, told CBC News.

Local authorities told The Canadian Press that at least three cars derailed.

The cars are lying on their side in a ditch. One of them may contain propane, but officials at the scene say there's no indication that it's leaking.

Other cars are carrying vehicles and a clay sludge, said Doiron, and there is no leakage at this time.

No injuries to bystanders or crew have been reported.

Edmundston Fire Services spokesman Peter Arel said crews from several municipalities responded to the emergency and were closely monitoring the situation, however, no evacuation order had been issued. Six houses are believed to be in the area.

There's no indication yet what may have caused the eastbound train to derail.

On Jan. 7 a CN freight hauling crude oil derailed near Plaster Rock, New Brunswick sparking a fire that burned for several days.

With files from CBC News