SARNIA, Ont. - A CN freight train derailed inside an international tunnel linking Sarnia, Ont., and Port Huron, Mich., spilling sulphuric acid inside, the rail company said Friday.
Roughly 40 cars are reported to have come off the tracks in "various positions," it said.
One car containing close to 14,000 gallons of sulphuric acid leaked, though the company said the substance was contained to the site and poses no danger to the public or the St-Clair River.
No fires or injuries have been reported, CN said.
The cause of the derailment remains under investigation and the company said it is working with officials in both municipalities.
It was not immediately clear when the tunnel would reopen.
