(AP) — Crews have begun retrieving the wreckage of a small business jet that crashed in a Derby-area field, killing a nationally known pastor and the plane’s pilot.

The crash Friday killed both pilot, Mitchell Morgan, and Ed Dufresne who led the World Harvest Church in Murrieta, Cailf.

Hundreds of pieces of the Cessna Citation were strewn across fields outside Derby. Most of the wreckage is centered in a 15-by-20-foot wide and 6-foot-deep crater, where the plane caught fire.

Investigators from National Transportation Safety Board, the Federal Aviation Administration, Cessna Aircraft Co. and the engine manufacturers are mapping and cataloging each fragment found.

NTSB Investigator Tom Latson says on-scene retrieval efforts should continue through Monday. The wreckage will be shipped to a Dallas-area facility for further inspection.