Some backcountry campgrounds and hiking trails are closed in part of Banff National Park after a grizzly bear attacked and killed a dog.
It happened in the Skoki Valley, Lake Louise on Thursday.
Park officials say a hiker was scrambling with a Jack Russell on a leash when he ran into the bear.
The dog was killed, but the owner got away uninjured.
Brianna Burley with Parks Canada says dogs don't make an ideal hiking partner.
“Parks Canada recommends when people are hiking in the backcountry they leave their pets at home because of these kinds of reasons,” Burley said. “Interactions with wildlife are always a lot more dynamic when you have your pet with you. If you’re going to take your pet, we strongly recommend you keep your pet on a leash so that you can prevent some of these encounters."
Burley says they're monitoring the bear with a helicopter and they have no plans to relocate or kill the animal.