The Forest Service is investigating why recordings of dispatch calls during the destructive Station Fire were withheld from a review team and reporters.
Forest Service Chief Tom Tidwell said Tuesday that he's troubled that the tapes were not found earlier because they could provide insight into initial firefighting efforts for the blaze that destroyed 89 homes and blackened 250 square miles on the edge of Los Angeles.
The Los Angeles Times had requested the recordings under the Freedom of Information Act.
Tidwell says the inspector general will determine why the tapes were not released or turned over to internal investigators.
Tidwell says the tapes are still being transcribed and their contents will be released soon.