In 1969, Markov left for Bologna, Italy, where his brother lived. His initial idea was to wait until his status with the Bulgarian authorities improved, but he gradually changed his mind and decided to stay in the West, especially after September 1971 when the Bulgarian government refused to extend his passport. Markov moved to London, where he learned English and started working for the Bulgarian section of the BBC World Service (1972). He tried to work for the film industry, hoping for help from Peter Uvaliev, but was unsuccessful. Later he also worked with Deutsche Welle and Radio Free Europe. In 1972, Markov's membership in the Union of Bulgarian Writers was suspended and he was sentenced "in absentia" to six years and six months in prison for his defection.