"Jackass" star Ryan Dunn died in a car crash in Pennsylvania early this morning ... TMZ has confirmed with Bam Margera's mother.
34-year-old Dunn appeared in all of the "Jackass" movies -- famously shoving a toy car into his rectum in the first flick back in 2002.
Dunn and an unidentified person both died in the crash which happened around 3 a.m. at Route 322 and New Street in West Goshen Township. It's unclear who was driving the car.
We're told the car caught fire in the crash -- and hours later, a tow truck was called to the scene to remove the charred wreckage.
Just hours before his death, Dunn posted a photo on Twitter showing himself drinking with friends.
Coroner: Ryan Dunn Died Violent Death
"Jackass" star Ryan Dunn and his passenger each died as result of both blunt force trauma AND the fire that consumed Dunn's Porsche during the crash Monday morning ... this according to the Chester County Coroner.
The Coroner's Office just released the autopsy results for both men -- who, we're told, were each dead by the time officials arrived at the scene.
Based on the autopsy results, the crash was so violent, it seems it was impossible to determine if the two died from the impact of the crash itself or from the fire that resulted.
Officials say the toxicology results for both men -- which would help determine the role alcohol played in the crash -- will be released in 4 to 6 weeks.
TMZ previously reported, officials believe Dunn's car veered off the highway and crashed in a wooded area Monday morning ... before exploding in flames. Investigators believe speed may have been a factor in the crash.
Sources: http://www.tmz.com/2011/06/20/jackass-ryan-dunn-dies-dead-car-crash-accident-pennsylvania/ http://www.tmz.com/2011/06/21/coroner-ryan-dunn-autopsy-results-chester-county-fire-blunt-force-trauma-zachary-hartwell/