The 62-year-old star’s family were keeping a bedside vigil.

Robin has been battling colon and liver cancer and now has pneumonia.

Family and fans of the Bee Gees were last night praying for his survival.

The singer, whose many hits include How Deep Is Your Love, recently appeared to have made a miracle recovery.

But doctors now believe a secondary tumour is present — and he has worryingly developed pneumonia.

Robin’s wife Dwina, brother Barry, 65, daughter Melissa, 37, and sons Spencer, 39, and Robin-John, 29, were at his bedside in a private hospital in Chelsea, West London.

A family friend said: “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’s health problems began in October 2010, when he had emergency surgery to treat a blocked bowel.

He then had further surgery to treat a twisted bowel — the condition that killed his twin brother Maurice nine years ago at the age of 53.

Robin will not be able to move of his own will now — or respond to any stimulation, whether it’s touch, pain, or the voice of a much-loved relative.

One can assume his coma is the result of the cancer that has probably spread to the brain.

But it can also be caused by an overwhelming infection. In either case, he would be very unlikely to recover.

He may remain in a coma for days or he may breathe his last quite soon. Nobody can really make such predictions.

(the Sun)