The Carrefour outlet in the Shapingba District, Chongqing Municipality. Nov.11 - Three people have died and 31 others were injured, including seven seriously injured, in a stampede triggered by sales promotion in a Carrefour outlet in southwest China Saturday.The three-day promotion was launched Friday to celebrate the 10th anniversary of the founding of the outlet in the Shapingba District, Chongqing Municipality.People began queuing at the entrance around 4:00 a.m. Saturday, waiting to buy a kind of cooking oil with a much favorable price, said Gao Chang, spokesman for the government of Shapingba District.The shop offered a deduction of 11.5 yuan (1.5 U.S. dollars) from the original price of 51.4 yuan (6.9 U.S. dollars) for a bottle of five-liter oil.Around 8:40 a.m. when the shop started its business, throngs of people burst in and a mass stampede occurred.He Yu, one the shoppers combating for the cooking oil, got bruises in his face and hands in the stampede."I rushed to the oil shelf with other people and grabbed four bottles. Suddenly I was tripped over on the floor. Luckily I got hold of another person and escaped from being crashed," the young man said.The injured people are being treated in four hospitals in the city."The outlet has been ordered to suspend operation and the work safety watchdog has started an investigation," said Gao.