Tractor-trailer rollover backs up traffic on I-95

A tractor-trailer rollover Tuesday night caused backed up traffic on I-95.
State police say it happened on Mamaroneck Avenue.
The truck has since been moved from the road and hazmat was removing the last remnants of cooking oil that spilled on the road late Tuesday night.
All three lanes were expected to be reopened before Wednesday morning.
Officials don't know how many people were injured and no word on what caused the accident.