Alongside sales and long lines, some shoppers were greeted with violence as American consumers embarked on what is traditionally the year's largest shopping day.

Shoppers pepper-sprayed one another in the battle for bargains, while in at least one incident a shopper was shot for her merchandise.

In Los Angeles, authorities were reviewing Wal-Mart surveillance footage after a woman pepper-sprayed others to gain preferred access to a variety of locations in the store, L.A. Fire Capt. James Carson told the Los Angeles Times.

In Myrtle Beach, S.C., Wal-Mart shopper Tonia Robbins, 55, was accosted at about 1 a.m. on Friday after a shopping spree. The robber demanded her purse and then shot her in the foot.

In San Leandro, Calif., a woman was shot outside a Wal-Mart store after reportedly refusing to give up her merchandise to robbers.

According to the Bay City News Service, the woman is in critical, but stable, condition at a nearby hospital. A suspect, who the woman's family members found and detained in a nearby field, is in custody.