Yesterday afternoon, the reporter received a report from the public that the supermarket in RT Mart, located in Jianguo West Road, Xuzhou City, suddenly closed for unknown reasons. Near the Mid-Autumn Festival, the supermarket suddenly closed, which really makes people feel strange. Half an hour later, the reporter rushed to the scene of the incident. I found that the guardrail outside the entrance of RT Mart supermarket was already crowded with bustling people. There are several police cars parked by the roadside. Some citizens said that someone might have put a bomb in it, so they stopped business urgently, otherwise it would be unlucky for any supermarket to close before the festival. At about 4: 20 pm, the doors of RT Mart Supermarket began to open in all directions, and reporters resumed normal business. Then he found the customer service department of the supermarket, and the business staff claimed that there was a fire drill inside the supermarket, so there was no need to panic. Afterwards, the reporter learned from the local police that the police did conduct a comprehensive security drill with the supermarket that day. The emergency closure of supermarkets is not a "fraud" in rumors. Indeed, as the business personnel said, the supermarket cooperated with the public security department to conduct pre-holiday fire drills.