A driver from Philadelphia was seriously hurt in the crash, according to New Jersey State Police.
Troopers responded to the crash at about 6 a.m. at Interchange 4 in Mount Laurel Township.
Based on a preliminary investigation, a Mack tractor-trailer operated by a 59-year-old Philadelphia man was traveling northbound on the Turnpike and was negotiating a curve of the entrance ramp at milepost 34.6, State Police said.
That's when the truck overturned and the driver was seriously injured.
The crash remains under investigation.
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