Prince Philip, 99, spent his second night at a London hospital after feeling unwell
- Prince Philip has been at the King Edward VII Hospital in London since Tuesday evening.
- The Queen's husband was admitted under guidance from his doctor after feeling unwell.
- The royal family continued royal duties in the days that followed.
The Duke of Edinburgh has spent a second night at King Edward VII Hospital in London as a "precautionary measure."
Prince Philip, who will turn 100 in June, was admitted to the hospital on Tuesday evening after feeling unwell under guidance from his doctor.
"His Royal Highness The Duke of Edinburgh was admitted to the King Edward VII Hospital in London, on Tuesday evening," a palace spokesperson said in a statement obtained by Insider on Wednesday. "The Duke's admission is a precautionary measure, on the advice of His Royal Highness's Doctor, after feeling unwell."
"The Duke is expected to remain in hospital for a few days of observation and rest," the statement added.
The duke traveled to the hospital by car and it was not an emergency or COVID-19 related, royal correspondent Victoria Murphy reported on Wednesday.
The duke was "sprightly" and was thought to be "in very good humor" before his hospital admission on Tuesday, royal sources told the Mail Online.
"The Duke is in good spirits," a source told The Sun's royal correspondent Matt Wilkinson.
"It is precautionary but you can't take any chances when you are 99 years old," another source added.
It's business as usual for the royal family while the duke is in the hospital
The Queen is continuing with royal duties from Windsor Castle while her husband is treated in the hospital.
Her Majesty held a telephone audience with Admiral Tony Radakin CB ADC, First Sea Lord and Chief of Royal Navy Staff to hear about naval operations and well-being during the coronavirus pandemic.
Meanwhile, Philip's son Prince Charles and the Duchess of Cornwall carried out a rare in-person engagement on Wednesday.
The couple visited the Queen Elizabeth Hospital in Birmingham to thank volunteers undertaking clinical trials for the COVID-19 vaccinations.