Five former Bank of China staff have been jailed for using US$30 million of bank money for illegal foreign exchange trades over 10 months. The women were employed at the bank's Nankou branch in Beijing's Haidian district in positions ranging from director to cashier and made 50,000 yuan on their transactions. The Beijing Evening News reports that the five were jailed for five years, while a sixth received a suspended sentence. It is not known how much money the bank lost as a result of the currency speculation. The Haidian District Procuratorate said a series of complex daily transactions began with a fictitious deposit of US$100,000 into the account of a person surnamed Hu. The ring used the cash to buy Swiss francs before converting it to yuan. The group then used the yuan to buy dollars on the black market and deposited the American currency into Hu's bank account. Hu was a bank client, a close friend of bank staff and also thought to be a foreign exchange speculator. The women were arrested in April last year after bank inspectors noticed account transactions occurring outside business hours.