One man has died but four other CN workers are okay after an industrial accident at a remote CN Rail yard in northeastern B.C.

RCMP confirm the victim died when a fuel tanker car derailed and rolled on him.

The incident happened just after 5 p.m. on Wednesday, but it took rescue workers some time to reach the site, which is about 180 kilometres north of Fort St. John and only accessible by rail.

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The coroners' office, Mounties, Transportation Safety Board and several other agencies are investigating the deadly derailment.