The Canadian National Railway Company (CN) is investigating the cause of a derailment that sent three railway freight cars off the track at the Aldershot yard.

The trio of cars left the tracks in a storage/shunting yard just after midnight Tuesday.

No injuries were reported.

CN spokesperson Lindsay Fedchyshyn told the Post the cars that left the tracks were carrying ballast, the black rocks found around railway lines that are used in the grading and stabilizing of the track bed.