SAN ANTONIO- An internal investigation is underway into an incident that involved a San Antonio police officer and a pedestrian, who is now dead.

A night of Fourth of July celebrating turned fatal in the 14500 block of Crainwood street.

An officer was investigating a report about illegal fireworks being shot off in the neighborhood. He questioned a person and told him to stop, then got back into his vehicle. As he was pulling out of a cul-de-sac he hit a woman.

"He heard a thud on the left side of his vehicle, the left front side," Sergeant Jesse Salame, with SAPD, said. "He immediately got out and saw that he had struck the woman."

That woman was 63-year-old Josephine Carter. Police said the impact of the vehicle led her to fall on the ground and hit her head. She died at the scene due to head trauma.

The officer, a six-year veteran on the force, is now on administrative duty, pending the investigation.

"It's not a finding that he did anything wrong or that he's in any kind of trouble, but because of the nature of the incident and somebody lost their life," Salame said.

SAPD said their traffic unit and internal affairs office are investigating the incident. Once their internal investigation is complete, they will send it over to the district attorney's office for review.

"We're going to look into every aspect of it," Salame said. "We're going to use the dash cam, the body cam, whatever evidence is available to us, in addition we can tell how fast the officer was going."

The department said, however, that they don't believe speed was a factor and said that the cul-de-sac was dark and that Carter was wearing dark clothing.

"Was the officer looking at the road, was the person in the roadway, were they wearing dark clothing," Salame said.

"There's a bunch of questions that need to be answered before we can make any real definitive statements on the status of the case and what's going to happen."