updated 12/18/2013 AT 7:00 PM ET
•originally published 12/18/2013 AT 6:30 PM ET
Investigators have found no evidence that the Porsche carrying actor Paul Walker had mechanical problems before it crashed, killing the Fast & Furious star.
The investigation also has ruled out debris or other roadway conditions as causing the car in which Walker was a passenger to slam into a light pole and tree.
The car, a 2005 Porsche Carrera GT, is notoriously hard to handle.
“We’re looking at speed and speed alone,” a law enforcement official with knowledge of the investigation told The Associated Press. The official was not authorized to speak publicly about the ongoing investigation and spoke on condition of anonymity.
The Nov. 30 crash also killed the driver, Walker’s friend and financial adviser Roger Rodas.