BERLIN (AP) â¿¿ All five people on a small business jet that crashed near Frankfurt have been confirmed dead, German police said Friday. Rescue workers discovered two more bodies amid the debris a day after the 12-seat Cessna with a pilot, co-pilot and three passengers on board crashed into a forest and burst into flames when trying to land at Egelsbach airstrip, Offenbach police spokesman Josef Michael Roesch said. Officials retrieved the cockpit voice recorder and the flight recorder from the plane's wreckage, and German flight safety experts are set to examine the data in hopes of learning what caused the crash, he said. The twin engine Cessna 750 Citation X was registered in the U.S., German news agency dapd reported, but authorities have not said who owned or operated it. Police had no immediate information on the victims' identities or their nationalities. Private business jet operator NetJets Inc., owned by U.S. billionaire Warren Buffett, holds an 80 percent stake in the small Frankfurt-Egelsbach airport. NetJets said it did not own or operate the crashed Cessna. The business jet was on a flight from the Austrian city of Linz. Rescue workers found three bodies immediately after the crash late Thursday.