Woman uses pepper spray on shoppers
Twenty people were hurt when a woman used pepper spray on other shoppers at a US supermarket.
Police said she was trying to keep them away from the goods she wanted.
The incident happened in a crowded Los Angeles area Walmart as shoppers hungry for Black Friday deals were let inside the store.
Black Friday is the day after Thanksgiving Day and many stores open early to launch the Christmas shopping season.
Officials said around half of the injuries were caused by crowd jostling after the spraying.
Police are still looking for the woman.