A New Jersey State Police helicopter was used to help in a search, which failed to turn up a driver.
A Honda Odyssey minivan with apparent crash damage but no driver fueled a search that initially shut the eastbound lanes of Interstate 78 on Sunday night in Greenwich Township, New Jersey State Police said.
The investigation is continuing into the incident, which was reported at 9:44 p.m. at mile marker 4, Trooper Alejandro Goez said.
The van had "significant damage" that appeared to come from a crash but no other vehicle was involved, Goez said. The van was found in the right lane, he added.
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A search -- it involved police, other emergency personnel and a helicopter -- did not locate anyone from the van, Goez said. Dispatches stated the concern was that someone was thrown from the vehicle, which was on the highway's right shoulder.
There didn't appear to be evidence of injuries inside the van, Goez said.
The highway was temporarily shut eastbound, Goez said, but two lanes closer to the center median were soon opened. On-ramps were shut as well, according to witness accounts.
In addition to state police, responding were the Stewartsville Fire Company, Greenwich Township Rescue Squad, Pohatcong Township fire police and paramedics from Hunterdon Medical Center.
The search ended just before 11 p.m., Goez said.
Tony Rhodin may be reached at arhodin@lehighvalleylive.com. Follow him on Twitter @TonyRhodin. Find lehighvalleylive.com on Facebook.