Worried supporters leave increasingly frantic messages as swimmer Susan Taylor's attempt ends in tragedy off the French coast.
A British woman has died while attempting to swim the English Channel, French authorities have said.
Having set off in the early hours of Sunday, married accountant Susan Taylor was just a mile off the coast of France, near Sangatte, when she collapsed.
The 34-year-old was pulled from the water and treated by support staff on the ship accompanying her attempt, who alerted French emergency services and requested a defibrillator.
She was airlifted by a French naval helicopter to a hospital in Boulogne-sur-Mer, where she was pronounced dead at 7.15pm on Sunday. She had been attempting to raise money for Rainbows Hospice and Diabetes UK through her Facebook page Create A Ripple Channel Swim.
A message apparently posted by her sister on the page said: "Whilst attempting to swim the English Channel yesterday my sister, Susan collapsed suddenly in the water. She was immediately recovered from the water and treated on the support boat.
"She was then airlifted by helicopter to a hospital in Boulogne. Susan tragically passed away.
"Thank you for your messages of support. If you would like to leave a sign of respect please feel free to donate to her fund raising page." She set off from Samphire Hoe at around 1am on Sunday and weather conditions were reported to be relatively good when she encountered difficulties, with water temperatures of 15C.
Posts on her Facebook page show supporters began to fear for Ms Taylor at around 9pm.
Sarah Taylor wrote: "Any news Susan Taylor? Can't seem to get any track since 6.30? Xxxxxxxx."
A short time later, Clare Biddle posted: "Hope all is ok?? Tracker has stopped!! Susan you are a star xxx."
At around 11pm, a user called Maverick Marc Richardson wrote: "What's going on no news and tracker doesn't look good."