One dead jellyfish wreaked havoc on a New Hampshire beach this afternoon, stinging close to 150 people, most of them children, and sending five to the hospital, fire officials said.

Rye, N.H., emergency officials received the call around 1:30 p.m. that 125 to 150 people, including children and a few adults, at Wallis Sands State Park had been stung by a jellyfish, Rye Fire Lieutenant Charles Gallant said.

Park officials had tried to remove a large dead jellyfish from the water earlier in the day, but it broke apart and the floating pieces stung the children in the water, he said.

The jellyfish was roughly the size of “a cover of a trash can,” Gallant said.

Didn’t it occur to anyone to close the beach until the floating pieces were collected or washed away?

via Ouch! Jellyfish stings 150 on N.H. beach – Local News Updates – MetroDesk – The Boston Globe.