Amazon opens till-free grocery store in London - the online retailer's first physical store outside the US

Amazon will open its first physical store outside the US today - but the shopping experience will be a bit different. Amazon Fresh is in Ealing, London, and it is much smaller than a supermarket. It will sell prepared meals, some groceries, and Amazon devices, as well as having a counter for collecting and returning online orders. Shoppers will scan a smartphone QR code to open the store's gates and their purchases will be tallied using ceiling cameras and shelf weight sensors. The technology can also register when someone has put an item back on the shelf, if they change their mind, for instance.