There is a great deal of concern in South Africa, there always is when it comes to the health of Nelson Mandela, but previous visits to the hospital were always described by officials as being scheduled or routine.
According to the details that we have been given about last night's visit to the hospital, this wasn't the case then.
We are told by people close to the Mandela family that he was suffering from a heavy cold earlier this week.
Add to that his recurring lung infection that saw him hospitalised earlier this month and at the end of last year, a problem that dates back to his time on Robben Island when he suffered from tuberculosis.
He's now old, frail, ill and perhaps a visit to the hospital is not too surprising but that's really nothing to stop people from worrying.
More top news
Police have revealed a pair of sandals they have had made similar to the pair Ben is thought to have been wearing when he disappeared
The hospital was last attacked just three days ago, something that UN Secretary General Ban Ki Moon denounced as a war crime.
Former UKIP leader Nigel Farage has flown to the US to help coach presidential candidate Donald Trump ahead of his next debate.