FOUR mat rempit were arrested for allegedly rioting and assaulting a policeman carrying out his duties during Ops Selamat at KM7 in Jalan Kulai-Kota Tinggi on Sunday.
Kulai District police chief Tok Beng Yeow said four men aged 23 to 39, who were believed to be involved in illegal racing, were arrested from around the city and Kulai yesterday.