BOISE, Idaho (AP) — The Idaho Humane Society says 11 pit bulls rescued from the scene of a triple homicide at a dog fighting operation in southern Idaho had to be euthanized due to dangerous behavior.

Humane society spokeswoman Hannah Parpart tells KTVB-TV the dogs were "hyper focused" on fighting other dogs. On Friday, a volunteer pilot flew three of the 63 the pit bulls rescued near Holbrook to Angel City Pit Bulls in Los Angeles. Parpart says the humane society is working on clearing about a dozen dogs for local adoption, but most won't be ready to go until next weekend.

The Idaho Humane Society is also trying to find other rescue organizations to accept the 40 remaining dogs, which are expected to need further behavioral help and socialization.