A transformer explosion at a New Jersey utility switching station has sparked a fiery blaze that's expected to rage for some time, authorities say.
PSE&G officials say a transformer exploded at the switching station off Route 202 in Branchburg at about 5 p.m. The transformers at the station are filled with a type of oil that will burn for awhile.
The oil is not reported to be toxic, PSE&G officials say.
The company has called in a firefighting apparatus that will cover the fire with a type of foam that should extinguish the flames.
The fire is isolated and poses no threat to the rest of the station or to neighbors, PSE&G says.
Northbound Route 202 was closed for about a mile near Old York Road as firefighters responded.
There have been no reported injuries. No outages have been reported.