Alijah Arenas' Cybertruck ended up wrapped around a tree in an L.A. suburb early Thursday morning -- and the cause is still a mystery -- but investigators do NOT believe alcohol or drugs were a factor.
TMZ Sports spoke with our law enforcement sources ... and we're told LAPD didn't observe any signs of intoxication at the scene, just moments after the 18-year-old 5-star recruit was pulled from his burning vehicle around 4:55 AM.
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