A 25-year-old man, who died Saturday at a hospital, was struck by a vehicle and not shot, authorities said Tuesday. 

Travis Martinez died at Banner-University Medical Center Tucson from multiple injuries "consistent with being struck by a vehicle," and not gunshot trauma, said Sgt. Kimberly Bay, a Tucson Police Department spokeswoman.

Traffic detectives were continuing the investigation and urge anyone with information to call 911 or 88-CRIME.

On Saturday at about 3:30 a.m., officers responded to a report of a man found in the street in the 1400 block of West Irvington Road who was possibly shot, police said.

When officers arrived, they found Martinez and reported he had "obvious signs of gunshot trauma," according to an earlier news release. Tucson Fire Department paramedics were on scene and treated and transported Martinez to the hospital with life-threatening injuries, states the release.

Martinez died several hours later. 

Since January, there have been 20 vehicle fatalities in the city, compared to 12 at this time last year, police data shows.