British Prince Philip (99) was admitted to King Edward II hospital in London on Tuesday evening, "as a precaution", Buckingham Palace said.
The prince did not feel well and was therefore taken to hospital, where he will probably stay for a few days so that he can rest and recover.
It is not the first time that Philip has been taken to hospital as a precaution.
This previously happened in December 2019. In April of the year before, he was operated on his hip.
In June 2017, the prince was also in hospital because of an infection caused by previous health problems.
In 2013, Philip was hospitalized after pain in his lower abdomen.
The Prince celebrated his 99th birthday with his wife, Queen Elizabeth II, at Windsor Castle in June.
The two have been in isolation there since March because of the corona virus.