PARIS (AP) — The latest news about the crash between a bus and a truck in southwest France. All times local: 10:35 a.m. French authorities have opened a preliminary investigation into a crash between a bus and truck near Bordeaux that killed at least 42 people. The circumstances of the crash remain unclear, according to Pierre Dartout, the top government official for the Aquitaine region, who announced the investigation to reporters near the crash site. Both vehicles caught fire after the crash Friday morning. The mayor of the town where the collision occurred, Xavier Sublett of Puisseguin, said on i-Tele television that the driver of the bus managed to open the door, allowing eight people to escape. He said helicopters were evacuating severely burned victims. ___ 10 a.m. French President Francois Hollande says at least 42 people were killed and several others gravely injured when a bus and truck crashed and caught fire in southwest France. Hollande's office said in a statement Friday that Prime Minister Manuel Valls and Interior Minister Bernard Cazeneuve are heading to the site of the crash east of Bordeaux. Calling it an "immense tragedy," Hollande promised an investigation into what happened.Read more on NewsOK.com