An aggressive grizzly bear attacked a group of schoolchildren and teachers on a walking trail in Canada, injuring eleven people, including three children and an adult who were hospitalized.

Eleven people were injured -- two critically -- after a grizzly bear attacked a group of schoolchildren and teachers on a ...

Four victims, including three children and an adult, were hospitalized and seven were treated in Canada’s British Columbia. The bear was not caught and residents were told not to go outside.