The accident occurred on the eastbound ramp to the northbound exit 29 ramp at Route 287/US 202/US 206 in Bedminster around 4:30 a.m., according to 511NJ.
All lanes remained shut down as of 8:20 a.m., though the exit to Route 287 south in Somerville was open.
This is a developing story. Check back for more.
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