Story highlights

NEW: One of the men shot was carrying a fake gun with the orange tip painted over

NEW: Police chief: Video shows the other man, Carnell Snell, was holding a handgun

(CNN) —  

For the second time in 28 hours, Los Angeles police are investigating a fatal officer-involved shooting.

The most recent incident came late Sunday afternoon, when officers responded to a report of a man armed with a gun near Ascot Elementary School.

“As the officers approached the male to initiate a pedestrian stop, the male turned and pointed a handgun at the officers,” Beck said.

That’s when police shot and killed the man. He later died at a nearby hospital.

But when officers examined what looked like the man’s gun, they learned it was a “replica handgun – it is not an actual firearm,” Beck said.

He said the orange safety tip, which distinguishes fake guns from real guns, had been blacked out with paint or a black marker “to conceal the fact that it was a replica.”

The police chief said he has reviewed body camera footage of the shooting, which he said supports the officers’ accounts of what happened.

Beck said authorities have not been able to identify the man shot Sunday, described as a Hispanic male wearing a gray sweater and black pants. He asked anyone who might know the man’s identity to call police.

Around 1 p.m. Saturday, officers tried to pull over a car with paper license plates, LAPD said. Officers believed the car was stolen because “the paper plates didn’t match the year of the vehicle,” Beck said.

But the car didn’t stop, and officers gave chase, police said.

When the car finally came to a halt, two men fled on foot in different directions, the LAPD said in a statement. Two officers chased one of the suspects, following him to the rear of a nearby residence.

An officer whose name has not been released then fatally shot the man, less than two blocks away from where the foot pursuit started. Paramedics declared the man dead at the scene of the shooting.

Snell then “turned in the direction of the pursuing officers,” Beck said. Police shot at Snell six times, striking him twice.

Several CNN affiliates and the Los Angeles Times identified the man killed by police as Carnell Snell Jr., 18. His mother, Monique Morgan, was visibly distraught as she told reporters her son was shot five times.

“My daughter got a phone call,” she said as she wept. “It said that the police shot him.”

“[The police] won’t let me see him,” Morgan told reporters. “They said they moved him already. I want to see him.”

The chief said the officers involved in Snell’s shooting were not wearing body cameras, but footage from a nearby business “clearly shows Snell in possession of a handgun as he was being pursued by the officers.”

As with any officer-involved shooting, LAPD’s Force Investigation Division will investigate and present its findings to Police Chief Charlie Beck. The chief, along with the LAPD board of commissioners, will determine whether the officer complied with the department procedures.

The Los Angeles District Attorney’s Office also plans to review evidence collected during the investigation.

The Los Angeles incident comes in the wake of recent police shootings of black men in El Cajon, California; Tulsa, Oklahoma; and Charlotte, North Carolina. The shooting victims in El Cajon and Tulsa were unarmed, but questions remain on whether the victim in Charlotte had a weapon.

CNN’s Tony Marco, Kimberly Hutcherson, Max Blau, Artemis Moshtaghian and Carma Hassan contributed to this report.