Police arrested four men suspected of rear-ending a vehicle before allegedly assaulting and robbing the driver in Taman Sentosa, Klang yesterday.<br /><br />South Klang District Police chief ACP Shamsul Amar Ramli said the incident occurred at about 4.30pm when a car driven by a man and his cousin was suddenly rear-ended by an early model Honda Civic occupied by four men.<br /><br />The group of suspects then smashed the car window, pulled the driver out of the vehicle and hit him with a stick before driving off with one of the victim's mobile phones.<br /><br />Shamsul said the results of initial urine tests found that all the suspects were positive for methamphetamine.<br /><br />The suspects will be investigated under section 394/427 of the penal code.