Business Business Visitors film around Xiaomi's SU7 electric vehicle, displayed at an event in Beijing, China on Dec 28, 2023. (File photo: REUTERS/Florence Lo) HONG KONG: China's Xiaomi said on Tuesday (Apr 1) that it was actively cooperating with police after a fatal accident involving a SU7 electric vehicle on Mar 29 and that it had handed over driving and system data. The incident marks the first major accident involving the SU7 sedan, which Xiaomi launched in March last year and since December has outsold Tesla's Model 3 on a monthly basis. Xiaomi's shares, which had risen by 34.8 per cent year to date, closed down 5.5 per cent on Wednesday, underperforming a 0.2 per cent gain in the Hang Seng Tech index. Xiaomi did not disclose the number of casualties but said initial information showed the car was in the Navigate on Autopilot intelligent-assisted driving mode before the accident and was moving at 116kmh. A driver inside the car took over and tried to slow it down but then collided with a cement pole at a speed of 97 kph, Xiaomi said. The accident in Tongling in the eastern Chinese province of Anhui killed the driver and two passengers, Chinese financial publication Caixin reported on Tuesday citing friends of the victims. In a rundown of the data submitted to local police posted on a Weibo account of the company, Xiaomi said NOA issued a risk warning of obstacles ahead and its subsequent immediate takeover only happened seconds before the collision. Local media reported that the car caught fire after the collision. Xiaomi did not mention the fire in the statement. Xiaomi began manufacturing EVs last year with the launch of the SU7 sedan after selling smartphones, household appliances and smart gadgets for most of its 15-year history. The company has two versions of smart driving systems on its SU7 EVs. The higher-end LiDAR-mounted version, as opposed to the pure vision version, enables urban navigation features such as collision avoidance and special vehicle recognition. Xiaomi said the car involved in the accident was a so-called standard version of the SU7, which has the less-advanced smart driving technology without LiDAR.  Subscribe to our Chief Editor’s Week in Review Our chief editor shares analysis and picks of the week's biggest news every Saturday. Get our pick of top stories and thought-provoking articles in your inbox Stay updated with notifications for breaking news and our best stories Get WhatsApp alerts Join our channel for the top reads for the day on your preferred chat app Copyright© Mediacorp 2025. Mediacorp Pte Ltd. All rights reserved. We know it's a hassle to switch browsers but we want your experience with CNA to be fast, secure and the best it can possibly be. To continue, upgrade to a supported browser or, for the finest experience, download the mobile app. Upgraded but still having issues? Contact us