AP: Speed to Blame for Paul Walker Crash

Crash investigators have determined that the Porsche carrying "Fast & Furious" star Paul Walker was traveling approximately 90 mph when it lost control on a California street and smashed into a light pole, killing the actor and his friend.

A person who has reviewed the investigators' report told The Associated Press on Tuesday that it concluded unsafe driving, not mechanical problems, caused the crash. The person requested anonymity because the report has not been officially released.

The report says driver Roger Rodas was going between 81 mph and 94 mph when his 2005 Porsche Carrera GT began to drift as it lost control after coming out of a curve.

The Los Angeles County Sheriff's Department and California Highway Patrol did the investigation. Neither commented on report's findings Tuesday.