Late at night, at a jeweler's shop in California, USA, people with their faces covered in hats and masks sneak in and smash the shelves with hammers.



A gang of robbers enter an Illinois luxury store, even in broad daylight, and come out with random items.



Store damage amounted to hundreds of millions of won.



At least 18 robbers broke into a luxury department store in Los Angeles and stole handbags.



The robbers subdued security personnel with tear gas spray.



[Chesa Boldin/San Francisco Attorney General: We see similar crimes taking place not only in the San Francisco area, but across the United States.]



[Charlie Ramsay/Former Philadelphia Police Commissioner: Things are getting worse as we go shopping. So the police need to strengthen their patrols.] In



Oakland, California, the police are on the go.



Here, a reporter from a local broadcaster who was reporting on the scene of a clothing store robbery was shot.



[Kim Armstead/Auckland Police Officer: As we all know, this week has been an extremely crime-filled week. We are asking you to check surveillance cameras in the areas where you work or live.]



Compared to earlier this year, San Francisco has an 88% increase in robbery and theft and a 52% increase in overall crime.



The ability to easily trade stolen goods through online direct trading sites is also considered a major problem.



[Jeff Rosen/Santa Clara County Attorney: We've seen things stolen in one area sold in another area.

We are investigating to find out and uncover such a sales network.] The



Thanksgiving holiday in the United States is marked by a robbery case.