The TV presenter Charlie Webster is on life support at a hospital in Rio, in Brazil, after contracting a "rare strain of malaria", her agent has confirmed.
The former Sky Sports News presenter who hosted ITV's Tour Series cycling race earlier this year became unwell on 6 August after watching the Olympic opening ceremony.
The 33-year-old was admitted to hospital where doctors initially thought she was dehydrated after completing her six-week 'Ride to Rio' challenge.
Ms Webster posted a picture of herself on Twitter from her hospital bed on 9 August where she said she was recovering from a "serious infection".
However, she did not post anything else and an update was shared on 11 August saying Webster had been diagnosed with “a severe complication caused by a bacterial infection”.
A spokesperson for Webster confirmed she is on life support after being diagnosed with malaria. She told the Independent a full update on her condition will be given at 6.30pm.
Ms Webster presented coverage of the women’s boxing at the 2012 London Olympic Games. She was due to stay on in Rio as part of Team GB's ‘Great Britons’ campaign featuring Radio 1 DJ Nick Grimshaw and model Jodie Kidd.
