Thu 2pm: We are aware of media reports about an unfolding catastrophe at the UK Biobank, and are awaiting more information to be in the public domain.

Losing the DNA, medical history, and wider contributions would be a catastrophe with existential consequences for any Biobank.

Thu 9pm: Some hours after the Guardian published the above, biobank put out an angry and threatening statement attacking the Guardian (cached here). We’ll update this page on Friday.