The attack is the fourth violent incident since the Williamsburg pool reopened on June 28 after a $50 million renovation.
A 13-year-old girl was punched in the face and needed surgery for a broken nose in the most vicious in a series of violent incidents since Brooklyn’s McCarren Park Pool re-opened last month.
Eighth-grader Sara Puk told The Post the trouble began as she and two friends were splashing around.
“We were screaming at each other, but it was like playing around,’’ she said yesterday.
An older girl said something to her, which she didn’t understand.
When she asked, the girl yelled, “Shut up!’’
Trying to avoid trouble, Sara and her friends changed and left.
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