ISN'T THIS WHAT CHRISTMAS IS ALL ABOUT: THREE KILLED IN HOLIDAY SHOPPING MAYHEM NATIONWIDE

Two people were killed in a shooting inside a Southern California Toys "R" Us store on the busiest shopping day of the year, authorities said.

The violence erupted on Black Friday, the traditional post-Thanksgiving start of the holiday shopping surge, but accounts of what occurred inside the store were fragmentary or second hand and it was not clear whether it involved any shopping frenzy.

The Palm Desert Police Department received calls of shots fired around 11:35 a.m., Riverside County sheriff's Sgt. Dennis Gutierrez said. He said officers were still investigating what prompted the gunshots.

Immediately after the shooting, about 20 people rushed into the World Gym across the street from Toys "R" Us, the gym's assistant manager Glenn Splain told The Associated Press in a telephone interview.

"They were crying, tearing and shaking," Splain said, adding that one woman came in cradling a baby.

"Some people got into a fight," said Splain, who spoke with some of the customers. "One of the guys here thought it was over a toy, but it got louder and louder and then there were gunshots."

Sarah Pacia of Cathedral City told The Desert Sun newspaper she was in the store with her two boys, ages 4 and 6, looking at coloring books when she heard a commotion in the next aisle. She thought it was people rushing to get a sale item. Then she heard three or four shots.

She said she froze, and store employees calmly escorted her out of the store.

"This is Toys "R" Us. There are kids shopping in there," Pacia said. Her son Jayden, 4, was clinging to her leg. He told her he didn't want to die, she said.

Toys "R" Us officials did not immediately return calls seeking comment.

Palm Desert is about 120 miles east of Los Angeles.

Across the nation in New York, a Wal-Mart worker was also killed Friday after an "out of control" throng of shoppers eager for post-Thanksgiving bargains broke down the doors at a suburban store and knocked him to the ground, police said.

At least four other people, including a woman eight months pregnant, were taken to hospitals for observation or minor injuries, and the store in Valley Stream on Long Island closed for several hours before reopening.

Nassau police said about 2,000 people were gathered outside the store doors at the mall about 20 miles east of Manhattan. The impatient crowd knocked the man to the ground as he opened the doors, leaving a metal portion of the frame crumpled like an accordion.

"This crowd was out of control," said Nassau police spokesman Lt. Michael Fleming. He described the scene as "utter chaos."

Dozens of store employees trying to fight their way out to help the man were also getting trampled by the crowd, Fleming said. Witnesses said that even as the worker lay on the ground, shoppers streamed into the store, stepping over him.

Kimberly Cribbs, who witnessed the stampede, said shoppers were acting like "savages."

"When they were saying they had to leave, that an employee got killed, people were yelling 'I've been on line since yesterday morning,'" she said. "They kept shopping."

The 34-year-old man was taken to a hospital, where he was pronounced dead at about 6 a.m., police said. The exact cause of death has not been determined, and the man's name was not released.

A 28-year-old pregnant woman was taken to a hospital, where she and the baby were reported to be OK, said police Sgt. Anthony Repalone. At least three other people were taken to hospitals with minor injuries.

Police said criminal charges were possible in the case, but Fleming said it would be difficult to identify individual shoppers. Authorities were reviewing surveillance video.

Wal-Mart Stores Inc., based in Bentonville, Ark., called the incident a "tragic situation" and said the employee came from a temporary agency and was doing maintenance work at the store.

"The safety and security of our customers and associates is our top priority," said Dan Fogleman, a company spokesman. "At this point, facts are still being assembled and we are working closely with the Nassau County Police as they investigate what occurred."