sofia turkey charge three bulgarians illegal migrant traffic assist criminal organization bulgarian foreign ministry say tuesday three detain friday hold custody northwestern turkish city edirne pending investigations ministry statement say last week bulgarian authorities smash gang suspect smuggle migrants western europe eight people include two pakistanis charge smuggle offences transport migrants mainly pakistanis afghans iraqis turkey romania hungary austria bulgaria build fence border balkan neighbor turkey bolster border control prevent inflows illegal migrants turkey charge three bulgarians migrant smuggle