Law enforcement officers at the scene of a shooting at the Mad Butcher grocery store in Fordyce, Ark

Gov. Sarah Huckabee Sanders said a fast response by first responders may have saved lives during the shooting in Fordyce, a small town about 70 miles south of Little Rock.

A gunman opened fire at an Arkansas grocery store Friday, killing at least four and wounding several others, authorities said.

The deadly incident unfolded just before 11:40 a.m. CT at the Mad Butcher in Fordyce, a small town about 70 miles south of Little Rock, Arkansas State Police Director Mike Hagar said at a late-afternoon news conference.

Thirteen people were wounded, including the four who died, Hagar said. The injured also includes two officers who had non-life-threatening injuries.

The four who were killed were identified by police and family members as Callie Weems, 23; Roy Sturgis, 50; Shirley Taylor, 62; and Ellen Shrum, 81.

Some of the surviving civilians were in “extremely critical” condition, Hagar said. As of a Saturday-evening update, four of the seven civilians injured remained in the hospital, including one woman in critical condition.

The shooter, treated in custody for non-life-threatening injuries after exchanging gunfire with officers, was identified Friday night as Travis Eugene Posey, 44, of New Edinburg, a community about 11 miles east of Fordyce.

Hagar, also the state’s secretary of public safety, said it was too early to determine what motivated the suspect. The Arkansas State Police are leading the investigation, he added.

At a news conference on Sunday, Hagar said the shooting appeared to be random, and that the suspect did not appear to target any specific person or place while using a 12-gauge shotgun on Friday.

Hagar said there appears to be no personal connection between the shooter and the victims, most of whom were women. He called the victims “targets of opportunity” on Sunday.

After his release from medical care, Posey was booked Friday evening at the Ouachita County Detention Center based on an allegation of first-degree murder, according to inmate records.

The suspect has been charged with three counts of capital murder, Hagar said Sunday, but that will be updated to four.

Hagar said Sunday that the suspect had a very limited criminal history, if he has one at all.

It wasn’t clear if he has retained counsel, and the public defender’s office for Dallas County, Arkansas, didn’t immediately respond to a request for comment.

Meat cutter Matt Gill was in the back of the store when he heard gunfire and shattering glass.

“He came in and started shooting,” Gill said. “We made it out the back door. I had to get out there, I have a wife and kids at home.”

The shooting appeared to begin in the parking lot as sisters Amiya and Ashiya Doherty were in the back of the family SUV, where they said they were nearly struck.

“He shot at my mother’s car and hit the tire and pssshshsh,” Amiya said, mimicking the sound of air escaping.

Car windows all around them were shot, but the sisters’ SUV only had tire damage. Amiya said she grabbed her sister Ashiya and pulled her down to avoid being hit.

“It was like a movie,” said Ashiya, who was also unharmed.

The violence stunned Roderick Rogers, a Fordyce native and pastor at Grace United Church.

“I saw people just lying in the parking lot,” he said. “There were shots going on everywhere."

Video that was verified by NBC News but does not show what transpired beforehand showed a man in a parking lot firing a long gun. Some rounds appeared to be directed at vehicles and the weapon was then lowered when he reloaded.

“Look at him,” a woman can be heard saying on the video that appears to have been shot from the far side of U.S. Highway 79, the road in front of the store.

“They done went into the Mad Butcher shooting,” she said.

Gov. Sarah Huckabee Sanders praised authorities for their immediate reaction.

“I am thankful to law enforcement and first responders for their quick and heroic action to save lives,” she said in a statement.

Fordyce is a city with a population of 3,396 and a median household income of $35,116, which is less than half the nationwide median of $74,580, according to U.S. Census Bureau data.

The Arkansas attack follows a mass shooting in Oakland, California, on Wednesday, when 15 people were wounded during Juneteenth events near Lake Merritt, officials said.

Also on Wednesday, seven people were injured after a shooting in Philadelphia, officials said.