A firefighter was slightly injured in a fall from the roof of a raging fire in a New Jersey post office.
After the fall, Carlstadt fire officers then switched to an exterior attack, according to WABC.
"...We had heavy fire on the second floor, a partial collapse from the roof down into the second floor," Carlstadt Firefighter Dennis Monks told reporters. "We started an interior attack. Due to the safety of the firefighters, we had pulled them out. We went to an exterior attack."
Mail was being removed from the building and put on trucks, but it wasn't clear if any mail or packages were damaged, he added.
An electrical supply store is located on the second floor, while the post office is on the first.
The cause remains under investigation.