Taken ill and rushed to hospital with some of sort bleed on the brain. Sounds very serious - hope all is well.
I saw on the ticker tape that Darren hadn't taken charge of Donny today so suspected something was up. Sounds bad.
I'm in a minority because I liked him and enjoyed reading both his autobiographies. Wishing him all the best
I think "OK" in this instance means still alive. The statement says he has had a successful operation (presumably a coiling or clipping of a ruptured aneurysm). We don't really know anything more than that. Outcomes from survivors cover a whole range of states from being able (in time) to lead a relatively normal life through to being unable to walk/talk (it's a form of stroke). I've got absolutely everything crossed he will be at the better end of the spectrum.