Biometric Verification Numbers used to tackle fraud in Nigeria have uncovered some 23,000 'ghost' civil servants drawing salaries.The fraud, which is costing the government millions of naira every month, has been investigated by a committee, reports The PUNCH.Underlining that this is organised fraud, in one branch over 300 accounts were said to have been opened in one day.As a result of this, the Federal Government now plans to probe no fewer than 23,306 employees.A source told The PUNCH: “The indicted individuals are in two categories. In the first group, we found out that the names of some civil servants, whose salaries are being processed, are different from the names on the accounts where their salaries are paid into. What this means is either those in this category are drawing salaries from two sources, or they are 'ghost' workers.”