Protesters sing the Bulgarian national anthem during a demonstration in central Sofia June 14, 2013. Thousands of people rallied on Friday to protest against the appointment of media magnate Delyan Peevski as Bulgaria's new security chief in a show of discontent after disputed elections. Chanting "Mafia" and "resign", about 10,000 people rallied in a main square in front of government headquarters in Sofia. Protesters expressed anger at parliament's appointment of Peevski to the security post, which political analysts have described as another example of Bulgaria subjecting state institutions to private interests. REUTERS/Stoyan Nenov (BULGARIA - Tags: MEDIA BUSINESS POLITICS CIVIL UNREST)