Legislators were urged yesterday to study whether mobile phones should be banned while driving. Statistics over the past five years show that traffic accidents resulting in injury involving the use of mobile phones accounted for only 0.013 per cent (an average of two cases) of the 15,000 road accidents per year. But the Government said the statistics might not be a 'true reflection of the size of the problem'. In the first three months of this year, two fatal crashes involved phones. 'While falling short of establishing a casual relation, overseas researchers suggest that using mobile phones distracts drivers and affects the driver's reaction time in an emergency,' the Transport Bureau said in a paper to legislators. Of 13 countries surveyed, five - Australia, Israel, Malaysia, Singapore and Switzerland - have specific legislation prohibiting the use of hand-held phones while driving. But most countries indicated that laws were mainly based on the perceived detrimental effect rather than comprehensive scientific research. The Transport Advisory Committee is reluctant to recommend legislation. 'The Government should step up education of drivers on safety hazards associated with the use of mobile phones while driving,' chairman Dr Cheng Hon-kwan said. Unionist legislator Lee Cheuk-yan and Tsang Yok-sing, of the Democratic Alliance for the Betterment of Hong Kong, who talked separately to the South China Morning Post on a mobile phone while driving last night, agreed that legislation should be introduced.