Authorities say these so-called "flash mob" thefts are sometimes organized on social media and often target high-end goods that can be resold. The thieves occasionally use violence to carry out ...

A “flash mob” of looters were caught on camera ransacking a 7-Eleven in Los Angeles earlier this week — making off with handfuls of cigarettes, snacks and other goods, authorities said.

With flash mobs of thieves committing dozens of heists in high-end and other stores around Southern California since early July, the problem became so dire that officials announced a task force ...

“We need to make this big,” stated one group. “Spread the word and we’ll flash mob the Tube,” read another. Media picked up on plans for a cocktail party on the Circle Line and the whole ...