Motorists should avoid the Bayonne Bridge.
The span is closed in both directions because of a crash involving three cars.
Port Authority police spokesman Al Della Fave says a van was crossing the Bayonne Bridge when it crossed the center line and struck another vehicle around 4 a.m. Friday.
Fave says the driver of the van jumped into a pickup that had stopped to assist and drove off.
A search is underway for the driver of a black Dodge 1500 pickup with New York license plates that read SALSA.
The span connects Bayonne with Staten Island.
It is not clear if anyone was injured in the multi-vehicle crash.