(Reuters) - Fitch cut its long-term rating on Greece to 'CC' from 'CCC' amid turmoil over the country's debt negotiations, that have led to fears that the country could make an exit from the eurozone. Greece, which has received nearly 240 billion euros in two bailouts from the European Union and International Monetary Fund since 2010, is inching closer to a default on a 1.6 billion euro debt repayment to the IMF which falls due on Tuesday. "We now view a default on government debt held by private creditors as probable," Fitch said in a statement.