Authorities in Alaska's largest city say a severely injured man initially believed to have been stabbed was more likely mauled by a bear.

Anchorage police say the man collapsed after stumbling out of the woods Wednesday night in a greenbelt area officials say is a corridor for wildlife including black and brown bears, and moose.

Police spokeswoman Jennifer Castro said Thursday that hospital medics found the wounds to the man's chest were more consistent with an animal attack rather than injuries from a knife.

The man remains in critical condition at the hospital.

State fish and game biologists are inspecting the scene.

Castro says police at the scene saw what looked like the marks of something being dragged.

The man's name was not immediately released.