SANTA FE, N.M. (AP) — New Mexico Gov. Susana Martinez has asked the FBI to investigate whether a campaign email system was hacked to obtain correspondence involving her and her top advisers, a spokesman for the governor said Friday.

The allegation of hacking came after a union-funded political action committee released several emails this month that show the governor and top aides used private email addresses to discuss government business. The disclosures led the GOP governor last week to order state workers to end the practice of using nongovernment email accounts.