Nigeria's central bank to fine four banks, ask MTN to return funds to country - sources

ABUJA (Reuters) - Nigeria's central bank will take regulatory measures against four banks and issue a statement on South African telecoms giant MTN Group Ltd , a central bank spokesman said on Wednesday.The measures, according to four banking and regulatory sources, will be fines against Citibank , Standard Chartered PLC , Diamond Bank PLC and Stanbic IBTC Bank PLC for their role in MTN's repatriation of billions of dollars the firm held in Nigeria and sent out of the country.Nigeria's central..