RED BLUFF, CALIF. -- Investigators recovered a black-box recording device from the student tour bus that crashed in Orland killing 10 people, but could not obtain one from the FedEx truck that slammed into the bus because it was so heavily damaged, federal officials said late Saturday.

The bus, a 2014 model that had only been in service for about a month, was equipped with an electronic control module that records trip data, but it is up to the vehicle's owner/operator to decide how much information it records, said National Transportation Safety Board spokesman Mark Rosekind. Investigators will not know how much they have until it is examined at an NTSB lab in Washington, D.C. He added that the bus was equipped with three-point restraint seat belts.

Rosekind also confirmed reports that witnesses said the FedEx truck was on fire before it crossed the median and slammed into a Nissan Altima and the tour bus, resulting in the tragedy.

"The driver (of the Altima) did report seeing flames that were coming out from the truck tractor cab prior to the crash as it was coming across the median," Rosekind said at a press conference in Red Bluff, about 30 miles from the crash site.

He also said there was no indication that the FedEx truck braked at all as it crossed over the 58-foot median onto oncoming traffic on the 5 Freeway, but that tire marks indicate the tour bus braked for 145 feet as the truck hurtled into its path. The FedEx tractor trailer first struck the Altima that had just passed the bus and was in the same lane ahead of it, before it struck the touring vehicle, he said.