Bees being shipped from Georgia to Maine swarmed out of the truck that was hauling them in New Jersey on Monday.
When the truck's load shifted, the driver pulled over near Route 287 and Maple Avenue, and realized he couldn't handle the escaping bees by himself.
Police then put out an urgent call to state beekeepers, and about a dozen responded, officials said.
The beekeepers worked to corral the bees, using buckets of sugary syrup.
The insects were loaded back into their hives and put on the truck, which was back on its way to Maine before noon.
A nearby office complex reported no problems of stray bees.