They're saying everyone is ok so far. Just had one of my old bosses on BBC News24 talking about it. Scary for the patients on site at the time and also for the thousands of out-patients who will no doubt worry about the continuity of their treatment. Karol points out that in many cases the treatment is not that time critical. Still means a heck of a lot of work finding places to treat those people though and making the unafffected floors watertight and useable again.
Wishing all the patients, staff, firefighters and everyone helping with the situation well.