Thirteen bison killed after road crash near Yellowstone national park

Herd struck by semi-truck on Montana highway, with some of the bison needing to be euthanized due to severe injuries'

Thirteen bison have died as a result of a road crash in the dark on a Montana highway near Yellowstone national park, authorities have announced.

In a statement released on Facebook, the West Yellowstone police department announced that around 6.30pm on Wednesday multiple bison were struck by a semi-truck near mile marker 4 on Highway 191", referring to a highway north of the town of West Yellowstone.