In a joint declaration issued on Tuesday President Rosen Plevneliev and Prime Minister Plamen Oresharski urged for condemnation of gambling with ethnic peace, the government information service said.
"We have become witness in the past days and weeks of actions which jeopardise democracy and the unity of the nation. Any attempts to impose hatred and intolerance for difference, to set Bulgarian citizens against each other, to gamble with ethnic peace and to use hate speech are unacceptable and must be condemned," Plevneliev and Oresharski said in a joint declaration.
"Bulgaria has completed its transition to democracy by opting for ethnic peace and the unity of Bulgarian citizens," they added, noting that the preamble to the Constitution says that freedom, peace, humanism, equality, justice and tolerance are the values that unite Bulgarians.
Hundreds of nationalists and soccer fans attacked a mosque in Plovdiv last week while a local court was hearing an appeal case on the return to the Chief Mufti's office of an ancient mosque seized by the state over a century ago.