It happened around 7:15 a.m., Franconia Township police wrote in a release. The driver of a Ford sedan was on Schoolhouse Road near the corner with Halteman Road when he left the roadway and struck the tree, the department said.
A passing driver and a nearby state trooper both stopped to assist and were able to remove the teen from the wreck "before the car caught fire," police said.
The 18-year-old, of Franconia, was taken to Grand View Hospital where he was pronounced dead, according to the department. Police did not report his name.
A stretch of Schoolhouse Road remained closed until around 9 a.m. Monday as firefighters put out the blaze and first responders worked the scene, authorities added.
The crash is under investigation by Franconia police.
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