06/04/2014 02:40 EDT | Updated 06/16/2017 00:58 EDT

CN crews clean up molten sulfur spill northeast of Edmonton after train derails

LAC LA BICHE, Alta. - Crews are working to clean up 50,000 litres of molten sulfur that spilled when seven train cars derailed northeast of Edmonton.

The Canadian National Railway (TSX:CNR) train derailed on Friday afternoon 72 kilometres north of Lac La Biche.

Alberta Environment says a CN dangerous goods team contained the spill from three of the cars and continue to clean it up.

No one was hurt.

The government says molten sulfur doesn't pose a risk to human health or the environment unless it is heated to an extreme temperature.

CN says the rail line has since reopened.