Turkey's Koc calls on Erdogan to address graft charges to lower tensions
March 02, 2014 at 09:13 AM EST
ISTANBUL, March 2 (Reuters) - Mustafa Koc, chairman of Turkey's biggest company Koc Holding, on Sunday called on the government to calm financial markets worried about a corruption inquiry and denied he has sought to undermine Prime Minister Tayyip Erdogan.