THE Bee Gees' Robin Gibb is lying in a coma as doctors fear he only has days to live, it has been reported.
The Bee Gees star's family were keeping a bedside vigil, praying for the 62-year-old's survival.
He appeared to have made a recovery from liver and colon cancer this year, but doctors believe a second tumor may be present, reported Britain's The Sun.
He has also developed pneumonia.
His wife Dwina, brother Barry, 65, daughter Melissa, 37, and sons Spencer, 39, and Robin-John, 29, were at his bedside at a private hospital in Chelsea, West London.
A family friend told the newspaper: "Our prayers are with Robin. he has kept so positive and always believed he could beat this. Sadly, it looks like he has developed pneumonia, which is very bad in his situation.
"If there is anyone you would put money on pulling through such a dire situation, it would be Robin because he is a fighter. But this is a battle he will struggle to win."
Robin revealed his battle with cancer in October 2010.
He had emergency surgery to treat a blocked bowel, before a further operation to treat a twisted bowel. Colon cancer was then discovered and it had spread to his liver.
His twin brother Maurice died of complications resulting from a twisted intestine in 2003, aged 53.
Barry Gibb earlier this week jetted into the UK from Tennessee in the US to join other members of the family.
At first Robin's illness was thought to have been due to the hereditary intestinal condition which led to the death of his twin brother.
In an interview earlier this month, Gibb pondered whether his illness is "karma" for the fame and fortune he has enjoyed.
"I sometimes wonder if all the tragedies my family has suffered, like Andy and Maurice dying so young and everything that’s happened to me recently, is a kind of karmic price we are paying for all the fame and fortune we’ve had.
"But we’ve worked hard for everything we’ve achieved."
Born in the Isle of Man to English parents, Gibb and his brothers lived their first few years in Manchester then moved in the late 1950s to Redcliffe, north-east of Brisbane, where they began their musical careers.
After achieving their first chart success in Australia with Spicks and Specks, they returned to Britain in January 1967 where producer Robert Stigwood began promoting them to a worldwide audience.
[Source: Daily Mail]