Turkey's lira fell to record lows on Friday rattled by domestic political tensions and the U.S. Federal Reserve's decision to start trimming its monetary stimulus programme, prompting the Turkish central bank to threaten more market action. Already hammered this year by expectations that the Fed would begin to stem a flood of dollars that has boosted global emerging markets, the bank has sold dollars regularly to prop up the lira and stop domestic inflation from getting out of hand. A row at the top of Turkish society that has seen dozens of senior businessmen, officials and policemen detained this week has only added to the bank's headaches. On Friday it increased its forex auction to $400 million from $50 million after saying it could sell as much as 10 times the announced minimum amount on days of excessive volatility. -- SPA 20:42 LOCAL TIME 17:42 GMT تغريد