The girl’s sister, Sameeha Sultana, 13, was found unresponsive about an hour later at 7th Avenue, a block north. Rescue crews and the U.S. Coast Guard pulled her out of the water, and CPR was performed. She was taken to Jersey Shore University Medical Center, where she was pronounced dead.

Hurricane Erin is expected to bring life-threatening rip currents and high surf to New York and New Jersey shores for the rest of the week, and authorities are advising people to stay out of the water even when lifeguards are present.

Jersey Shore officials are pleading with the public to avoid swimming in the ocean when no lifeguards are around, especially now with Hurricane Erin.