Hundreds of people are recovering from stings after a swarm of tiny jellyfish floated up on Florida's east coast over the weekend.
Volusia County Beach Patrol officials said about 500 people were stung.
They believe the jellyfish have moved in because of winds from storms in the tropics.
Patrols said the jellyfish are about the size of a silver dollar. They are small, round and mostly clear, making them very hard to see, but victims who were stung said it's easy to know when you touch one.
"We were just floating around on our boogie boards, and I felt something wrap around my ankle, and it hurt so bad!," explained Alexis Scheuerman. "I just felt a lot of stinging and I just tried to get out of the water pretty much, because it was burning quite bad."
The beach patrol said no one was seriously hurt by the stings, but they expect the jellyfish to stick around as storm conditions continue in the tropics throughout the week.