A police chief in southwest China has been sacked for a “disciplinary violation” after an investigation that followed a road rage incident involving his wife, who was driving a Porsche. In a statement on Sunday, Chongqing police said Tong Xiaohua had been dismissed after a two-week investigation into the case and that a further inquiry was under way. “We will learn from this incident and maintain strict police discipline. We will start from one small household to ensure everyone’s safety in society,” the statement said, referring to the investigation of Tong and his wife Li Yue, including their assets and accounts. Chongqing police did not give further details of the case or any accusations against Tong. It came after a road rage incident involving Li in Chongqing last month that was captured on video and met with an online backlash after it was widely circulated on social media. Li had tried to make a U-turn but was unable to do so because the car behind did not give her enough space, Pear Video website reported. The video shows Li, in a wide-rimmed hat and high-heeled shoes, getting out of her red Porsche to confront the driver of a Chery, a low-end make of car in China. She is seen slapping the man before being slapped back by him, sending her hat flying. The man’s wife told The Beijing News the woman had mocked her husband for being dressed in shoddy clothes and driving a “beggar’s car”. At the time, Chongqing police said Li had been fined 200 yuan (US$28) for turning on a zebra crossing, and a further 50 yuan for wearing a hat and shoes deemed unsafe to drive in. She also had two points deducted from her driving licence. Porsche designed a sleek machine for China’s rich – and it’s not a car, it’s a washing machine On Sunday, Li apologised and expressed her “deepest regret” over the incident. “Because of my arrogant and conceited ways, I have said irresponsible things. [My behaviour] has hurt and placed a serious mental burden on my family, including my husband and daughter,” she said in a statement. “I am very sorry and regret that.” Social media users had earlier criticised her “unscrupulous gestures” and “arrogance” on Weibo, China’s Twitter. Others dug up photos and videos of Li, accusing her of flaunting her wealth online.