Police have confirmed a woman was found unconscious in the sea off The Esplanade, Bognor Regis, yesterday.
Officers were called around 5.13pm to the incident.
A spokesman said: “Members of the public and officers commenced CPR on the woman on the beach before paramedics arrived, but she was sadly pronounced dead at the scene.
“There are no suspicious circumstances, however the woman’s death remains unexplained at this stage.”
Anyone with any information is asked to report it online at https://sussex.police.uk/appealresponse quoting serial 1114 of 06/07.
This story will be updated when more is known.