The Swiss authorities have reportedly frozen three bank accounts of the former head of private Greek bank Proton.<br /><br />Greek businessman Lavrentis Lavrentiadis is under investigation by Greek prosecutors for alleged fraud, embezzlement and corruption involving up to 700 million euros. <br /><br />Lavrentiadis vigorously denies the allegations and has accused the authorities of acting illegally.<br /><br />...<br />http://www.euronews.net/