Police say a woman found dead Friday afternoon in Port Washington waters had slipped off an icy landing near a houseboat and struck her head, Nassau County detectives theorize.

The death of the 57-year-old woman, whose name won't be made public until her next of kin are informed, was discovered Friday afternoon around 2:19 p.m. near Matinecock Avenue when a passerby who found the body, police said.

Authorities say they plan an autopsy.

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3 NYC casinos approved ... Greenport approves new rental laws ... Women hoping to become deacons Credit: Newsday

Rob Reiner's son arrested after parents' death ... 3 NYC casinos approved ... English, math test scores increase ... Out East: Southold Fish Market

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