08/30/2015 06:12 EDT | Updated 08/30/2016 05:59 EDT

Grizzly Bear Attacks Quad, Motocross Riders Near Cochrane, Alberta

The two riders were attacked after they encountered two cubs.

GREGORY OCHOCKI via Getty Images

COCHRANE, Alta. — Alberta Fish and Wildlife says a quad rider and another rider on a motocross bike were attacked by a mother grizzly bear northwest of Cochrane.

The agency's enforcement division says in a Facebook post that the two riders were in an area known as the Ghost Public Land Use Zone on Saturday evening when they encountered two cubs.

The mother then attacked the riders, and the attack continued until one of the riders was able to pepper spray the bear.

The riders then got on the quad and rode for help.

One was seriously injured and was flown by helicopter to Calgary, while the other's injuries were minor.

Alberta Fish and Wildlife says it has now closed the area to the public.

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