sofia bulgarian authorities detain gang suspect smuggle migrants iraq iran syria western europe turkey prosecutors say monday gang three kurds four bulgarians charge smuggle offences transport migrants turkey serbia romania countries border bulgaria one member group still detain prosecutors say south eastern europe key point transit million migrants middle east africa come europe 2015. many come escape conflict syria however stay bulgaria european union poor state instead prefer journey onwards wealthy western eu countries like germany sweden influx provoke political crisis european union flow migrants diminish since though bloc yet agree migration policy evidence gather indicate final destination migrants western europe countries spokesman prosecutors office tell reuters add migrants come countries iraq iran syria migrants pay 2,000 euros 2,360.60 transportation turkey bulgarian capital sofia bulgaria build fence border turkey bolster border control prevent illegal migration last month bulgarian authorities smash another gang suspect smuggle migrants western europe 0.8472 euros bulgaria arrest gang suspect smuggle migrants western europe