It happened around 6:00 p.m. on Wednesday, December 28 at 3637 Trinity Mills Road.
Witnesses said the dog broke free from its owner while being walked.
Investigators have yet to locate dog and its owner.
The owner of the dog is described as a 20-30 year old white or Hispanic man. The dog is described as a black and white pit bull with a blue collar and leash.
Anyone with information on this case can contact the Dallas Police Youth Operations Unit at (214) 671-4268.
(DFW - Dec 29, 2016)