LONDON — Britain's Prince Philip was admitted to a London hospital Friday for "observation and treatment," Buckingham Palace has said in a statement.
The prince, who is Queen Elizabeth II's husband, was admitted as a precautionary measure in relation to a pre-existing condition on the advice of his doctor, the palace added.
It was a planned visit and the 98-year-old walked in for treatment, a spokesperson for the palace told NBC News, adding the queen remains at her Sandringham Estate in Norfolk.
The prince, who is is the longest-serving consort of any British monarch, is expected to remain in hospital for a few days, the spokesperson added.
He retired from public life earlier this year.