Officials are still not sure what sparked a warehouse fire in central New Jersey that could be smelled from miles away and generated smoke that was detected by weather radar.
The fire in the structure at Veterans Industrial Park in Hillsborough continues to burn on Friday morning and has not yet been declared under control. It broke out around 3:30 p.m. Thursday.
Fire officials say plastic pellets were being stored in most of the complex and environmental officials have been testing air quality. So far, they say the air is safe.
The 300,000-square-foot complex was once used to house old military munitions and is near historic Duke Farms. The estate that belonged to the late tobacco heiress Doris Duke has not been damaged.
A firefighter sustained a minor leg injury.