WASHINGTON - Federal regulators said on Wednesday they do not know the whereabouts of billionaire Texas banker Allen Stanford, charged with massive international financial fraud, federal regulators said on Wednesday.

We are unaware of his whereabouts, SEC spokeswoman Kimberly Garber said from Texas. Asked if Stanford may be outside the United States, she said, Certainly that's a possibility but we don't know.

(Reporting by Randall Mikkelsen)