Police said 25-year-old woman hit by a wave near a tidal rock pool at Maroubra, and another swimmer missing at Coogee

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A woman has been found dead after being swept out into the ocean from a Sydney beach in the early hours of New Year’s Day, as authorities issue a warning about dangerous surf conditions on the NSW coast.

Later in the morning another swimmer went missing in the water at Coogee.

Emergency services were called to Maroubra Beach in Sydney about 4am on Thursday after reports a person had been swept out into the ocean.