UK's Prince Philip is "OK", says grandson Prince William

LONDON, Feb 22 (Reuters) - Prince Philip, the husband ofBritain's Queen Elizabeth, is "OK", Prince William said onMonday after his 99-year-old grandfather spent a sixth night inhospital.

Philip, the Duke of Edinburgh, was admitted to hospital onTuesday as a precautionary measure after feeling ill with anailment that was not related to COVID-19.

"Yes, he's OK, they're keeping an eye on him," William saidon a visit to a vaccination centre in eastern England. Royalreporters said he delivered his message with a wink.

The Duke was admitted to the private King Edward VII'sHospital in central London after feeling unwell for a shortperiod, Buckingham Palace said, and was kept in over the weekendfor further observation.

A royal source said doctors had been acting out of anabundance of caution and that Philip was in good spirits.

Son and heir Prince Charles paid him a brief visit onSaturday, although there has been no official update on hiscondition since last week.

Philip, who retired from official engagements in 2017, spentfour nights at the same hospital at the end of 2019 while beingtreated for a pre-existing condition.(Reporting by Michael Holden, editing by Elizabeth Piper)