JACKSONVILLE, N.C. -

Police in North Carolina killed a 500-pound alligator after it killed a dog walking with its owner.

Authorities say the alligator may have mistaken a husky weighing 80-pounds for a duck while walking near a bridge.

Following the incident on Wednesday, police returned to the area and found the alligator, killing it by firing three shots with a high-powered rifle.

The dog was still in the mouth of the gator which measured 12-feet long.