ALBUQUERQUE (AP) – The New Mexico Commission of Public Records is worried some of the state’s archival material dating back to Spanish rule may end up for sale online.

The state agency responsible for archiving New Mexico’s past recently issued a warning that the sale of state public records is illegal and comes after officials have notice some documents being sold online.

State Records Administrator Linda Trujillo told The Associated Press officials are not aware of any new cases of state records appearing for sale on online but officials have discovered some in the past.

State officials say New Mexico has lost many of historical documents from Spanish, Mexico and territorial periods to private collectors and they fear some may appear online for sale.