Authorities closed the southbound lanes of Interstate 15 near St. George for several hours Sunday night after the crash. Utah Highway Patrol Cpl. Todd Johnson says the road reopened early Monday morning.

The tractor-trailer was carrying an estimated 25 million bees.

Johnson says many of the insects dispersed but the truck’s driver and passenger, along with at least two law enforcement officers were stung. No serious injuries were reported. He says beekeepers were brought in to help.

The hives have since been moved to nearby pastures in hopes the bees will return. Authorities had been recommending drivers in the area keep their windows closed.