2GB radio personality Ray Hadley falls ill on air

Australian radio personality Ray Hadley has been forced off-air mid-show after suffering a medical condition.

Hadley was more than an hour into his 2GB morning show when he told listeners he was feeling unwell.

"I've been battling a problem since last night. It's a problem that I encounter every couple of years. It's called diverticulitis," he said.

"I'm about to have, I think, an attack, and the only thing I can do is get to my GP, talk to him and get something done about it."

In a statement from 2BG, Hadley is now being treated in hospital.

According to the NSW government health department, diverticular disease is a condition where small bulges or pockets form in the wall of the large intestine.

It's is linked to a low-fibre diet and is more common as people age.

Symptoms include fever, nausea, difficulty going to the toilet and diarrhoea.

Treatment includes antibiotics and painkillers.