Hundreds of people were seen queuing at a Los Angeles branch of the wholesale retailer Costco on March 8 as panic buyers stock up on supplies.br br Footage shows a long line of people with shopping carts throughout the parking lot with others trekking to the back of the queue in the distance. br br The filmer explained: "The line at this Costco in Los Angeles snakes all the way around the car park. br br "Hundreds are buying essential supplies in a panic. br br "Costco has set a limit in this store to two packs of water and toilet tissue per customer. br br "Some of those in the line can be seen with masks on.