The National Transportation Safety Board and Federal Aviation Administration have arrived to investigate a deadly plane crash over Lake Coeur d'Alene.
Six bodies have been recovered since two planes collided and crashed into the lake on Sunday.
Authorities are still working to recover two more people despite weather delays.
A sonar team is headed out to search for the remaining victims and parts of the planes.
An Oregon father and his three children were among those who died in the collision.