[Koha] import authority records

I do not see a way to import authority records. Is there a way from within Koha to search the LoC authorities and import them into Koha (similar to the Z39.50 search)? Let's say I search LoC and export a bunch of authorities to a text file, is there a way to bulk import them into Koha? Am I missing something? Or is the only option available right now to create my own authority records under the blank "Adding authority" form? --Jason