Barclays share price has plunged by 17 per cent after the UK bank was hit by record fines for distorting key interest rates. <br /><br />The rates concerned play a major role in international financial markets and affect how businesses and consumers borrow money. <br /><br />Barclays agreed to pay $453m for using underhand tactics, including price-fixing, to rig the markets.<br /><br />Other British banks also slumped on reports that the scandal was set to engulf HSBC, Lloyds Banking Group and Royal Bank of Scotland.<br /><br />Laurence Lee reports from London.
