A loose pit bull fatally attacked a Stockton man Saturday afternoon, according to the San Joaquin County Sheriff's Office.

The sheriff's office said deputies were called to a pit bull attack on North Gertrude Avenue, at the Farm Street crossing, just before 4 p.m. In the area deputies found 43-year-old Earl Wayne Stephens Jr. badly bleeding with multiple dog bite wounds.

The pit bull was loose in the yard and acting aggressively, according to deputies, prompting them to kill the dog in an effort to save Stephens. Stephens was taken to a nearby hospital where he later succumbed to his injuries.

An investigation is ongoing.