A 70-year-old woman apparently drowned in waters off Poipu Beach on Kauai Wednesday.

She has been identified as Janice Klayson of Kansas.

Shortly after 5 p.m., firefighters responded to a woman who was swimming approximately 30 feet from the shore then discovered face down in the water.

Police said bystanders pulled Klayson to shore and performed CPR until firefighters arrived. Paramedics transported her to Wilcox Hospital where she was pronounced dead.

An autopsy is expected to be performed to determine the exact cause of death.

This is Kauai’s 12th drowning this year compared to six for all of last year.

A high surf warning is in effect for north and west shores of Kauai County and Molokai and along the north shores of Oahu and Maui until 6 p.m. Friday. Surf of up to 20 to 25 feet is expected.

Officials advised beachgoers to steer clear of the water and shoreline at affected areas due to hazardous currents and breaking waves.