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When a
group of people gather at an appointment and then disappear, it's called a "flash mob," and dozens of people have been robbing convenience stores under the guise of such a game in the United States.

Reporter Yoon Young-hyun reports.

<Reporter>
On the afternoon of the 14th
local time, a convenience store in Washington, DC, United States.

People line up at convenience stores as if they were playing a train.

However, there are many people who leave the shelves with drinks, food, and candy.

They look so imposing, they look like flash mob, but they're convenience store thieves.

When the convenience store checked the CCTV, it was determined that about 40 people stole $1,1 and 130.2 million won worth of our money in just over one minute.

[Nicholas Mandala/Convenience Store Customer: It's scary to see so many people systematically stealing from convenience stores, it's really sad.]

The thieves were found to have fled on bicycles or fled across the street to a subway station.

This isn't the first time a convenience store has been robbed under the guise of a flash mob.

The convenience store said it had a similar theft last year, but this time there were twice as many thieves.

Police are following the thieves as they identify them based on CCTV.

(Video editing: Kim Jin-won)