A train derailed in southeast Minnesota, on tracks that hug the Mississippi River.
WXOW reports six cars derailed around 11 p.m. near Reno, Minnesota (about 8 miles north of the Iowa border). No injuries were reported. Two cars broke through ice and are in water – one carrying grain is leaking, another carrying sodium chlorate is not.
Sodium chlorate is often used in the papaermaking process, to produce a chemical that bleaches wood pulp, the company ERCO Worldwide says.
It is soluble in water, and considered toxic to aquatic life, according to PubChem's Open Chemistry Database.
The railway runs along the Mississippi River in that area, between the water and Highway 26. You can see it in the Google Maps window below – it's the curving line with little perpendicular marks on it.
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The incident comes at a time when rail safety is at the forefront of many communities and elected officials.
There were a pair of derailments in Wisconsin last November, which prompted Minneapolis City Council member to call for safety improvements.
And that came just weeks after Minnesota Gov. Mark Dayton pushed up inspections, concerned about the number of trains carrying crude oil through densely populated areas.