ISTANBUL - Two retired Turkish generals were charged on Friday over a plot to unseat the Islamist-rooted government, broadcaster CNN Turk said, a move which could stoke fresh tension between the ruling party and secular armed forces. Cetin Dogan, a former head of Turkey's First Army, and Engin Alan, a former special forces commander, are the most senior figures to be formally arrested following the detention of some 50 officers on Monday, more than 30 of whom have now been charged. Turkey's prime minister, president and head of the Armed Forces held a three-hour meeting on Thursday to try and defuse tensions, but developments have hit Turkish markets throughout the week and rattled investor confidence in the European Union candidate country.