Traffic was brought to a standstill in Luoyang, Henan, last Thursday, when a road toll in Luonan Expressway was swamped by millions of wild bees.
Fourteen fire fighters were immediately sent to the scene to help fight the swarm.
Traffic returned to normal one hour later after the bees were driven away.
Two road staff were injured from being stung. It is unknown why the bees attacked the road toll.