HOUSTON -- A bank teller has pleaded guilty to selling customers' account information, KPRC Local 2 reported.

Christopher Martin, 25, went before a federal judge Tuesday and admitted to bank fraud.

Martin was a teller at First Convenience Bank. He is no longer employed by the bank.

Prosecutors said Martin had access to account information and he sold information to an unknown person who paid $500 to $800 for each customer's information.

The purchaser used the information to withdraw money from the accounts, officials said.

Investigators said, at least once, the purchaser transferred stolen money to a fake account Martin opened at the bank. Martin created an ATM card linked to the fake account and then used the card to withdraw money and pay for charges at restaurants, officials said.

Detectives said six customers' accounts were compromised, leading to the theft of $53,000. The bank reimbursed the customers the funds taken from their accounts.

Martin faces up to 30 years in prison and a fine not to exceed $1 million, as well as five years of supervised release. Martin will have to pay the bank restitution.