via – MSNBC

Violence erupted at Black Friday sales across the country with one bargain-hunter left critically injured after being shot during a robbery and 15 other people injured when an angry shopper used pepper spray.

Several of the incidents took place at Wal-Mart stores as millions of Americans loaded up on holiday purchases.

Update 11:57 a.m. ET: An off-duty police officer used pepper spray on shoppers at a Wal Mart in Kinston, N.C.

Kinston police Sgt. Roland Davis said an off-duty officer whom the store had hired to help with security used the chemical while trying to make an arrest during a disturbance. Unconfirmed reports said as many as 20 peopl ewer affected.

Updated 10:55 a.m. ET: A Rome, N.Y., man was charged with disorderly conduct after a fight that broke out the moment Black Friday shopping began at midnight, NBC station WSTM of Syracuse, N.Y., reported.

Several shoppers at the electronics department at a Wal Mart store were pushed to the ground, and several fights broke out, Oneida County sheriff’s deputies said. Two shoppers were taken to a hospital for minor injuries.

Updated 10:39 a.m. ET: Police said they were investigating a possible shooting in the parking lot of Valley West Mall in West Des Moines, Iowa, NBC station WHO reported. There was no immediate report that anyone was injured.

Police got a call of shots fired shortly before 4 a.m., when the mall opened. They wouldn’t say whether they had a suspect, and they reassured shoppers that the mall is safe..

Updated 9:50 a.m. ET: A 55-year-old shopper was shot and wounded during a robbery near a Wal-Mart in Myrtle Beach, S.C., NBC station WMBF reported.

Tonia Robbins, 55, was shot in the foot after two men demanded her purse shortly after 1 a.m. ET Friday as she stood by the trunk of her car with friends.

Updated 9:45 a.m. ET: An explosive device was found at a break room at a Wal-Mart in Cave Creek, Ariz., according to reports Friday.

Maricopa County Sheriff’s Office said a suspicious package was found inside a refrigerator in the store break room on Thursday. The store was evacuated as a precaution while deputies investigated the package.

Updated at 9:40 a.m. ET: A Black Friday shopper was shot and critically injured during a robbery outisde a Wal-Mart in San Leandro, Calif., early Friday, police said.

Police patrolling the parking lot found a victim suffering a gunshot wound and a possible suspect being detained by family members of the victim.

Police said the victims were walking to their car with their purchases and were approached by multiple suspects who demanded the merchandise.

A fight ensued and one suspect pulled out a gun and shot one of the victims. Some of the victims wrestled down one suspect as the other suspect fled the scene.

The victim who was shot is in critical but stable condition at a local hospital. The suspect in custody is an adult male in his mid ’20s, but it is not known if he was the shooter.

Updated at 7.30 a.m. ET: An angry woman used pepper spray when Black Friday bargain-hunters tried to cut in line at a crowded Wal-Mart store in Los Angeles late Thursday, leaving 15 people with minor injuries. The incident occurred shortly after 10:20 p.m. PT (1:20 a.m. ET Friday) in the San Fernando Valley as shoppers looking for deals were let inside the outlet.

Shawn Lenske, a Los Angeles fire department spokesman, said the injuries were due to “rapid crowd movement.”

Video uploaded to youTube shows shopper recovering after one woman allegedly doused them in pepper spray as they battled for bargains at a Walmart in Los Angeles. NBC’s Kristen Dahlgren reports.

NBC News reported police said no more than 15 were hurt, 10 of them for the effects of inhalation of pepper spray.

Police Lt. Abel Parga said a woman used pepper spray, then left. Parga said police were looking for the woman and no arrests have been made.

“It was an unhappy customer,” he said.

A witness told Los Angeles’ NBC4 that the incident started as people waited in line for the new Xbox 360.

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