A 14-year-old schoolgirl was arrested for allegedly assaulting a woman teacher yesterday after a dispute over her uniform at a Tsuen Wan secondary school. The Liu Po Shan Memorial College Form Three student clashed with Tsang Shuk-kuen, 38, after being told off for arriving at morning assembly wearing a black jacket, earrings and with 'Hello Kitty' items on her school bag. She was taken to see the vice-principal and discipline master Pang Hok-keung. Asked to leave her jacket and earrings and collect them after school, she became upset and ran out of the office. Headmaster Eddie Wong Shiu-gun said she ran to her classroom but met Ms Tsang on a staircase. 'The schoolgirl grabbed the teacher's jacket collar and punched her in the chest,' he said. 'She held Ms Tsang for about five minutes until she was told we would call the police.' She was taken to Tsuen Wan police station and later released on bail of $500 and told to report back on February 25. The girl has been suspended from school for three days.