A 40-year-old woman has been arrested on suspicion of attempted burglary after gaining access to Prince George’s school.
The Metropolitan Police said security was being reviewed at Thomas’s Batttersea after the woman entered the school in south London on Tuesday.
She remains in custody after being arrested on Wednesday.
Thomas’s Battersea in London where Prince George is a pupil (Jonathan Brady/PA)
A police spokesman said: “The arrest at 14:15hrs on Wednesday, 13 September relates to an incident at Thomas’ Battersea School on Tuesday, 12 September when an individual gained access to its premises.
“The arrested woman was taken to a south London police station where she remains in custody.
“We are working with the school, which is attended by His Royal Highness Prince George, to review its security arrangements after the incident.”
A Kensington Palace spokeswoman said: “We are aware of the issue but we would not comment further on security matters.”
The police spokesman added: “Police were alerted and officers attended immediately after the issue came to light.
“Police are part of the protective security arrangements for the Prince and we will continue to work closely with the school, which is responsible for building security on its site.”
The Duke of Cambridge took Prince George to school on his first day (Richard Pohle/The Times/PA)
Prince George, four, only started at the fee-paying independent school last week, on September 7.
He was expected to begin by attending school for half-days, before building up to longer hours.
It educates 560 boys and girls aged from four to 13, with around 20 pupils in each class.
Fees cost £17,604 a year, and increase to £19,884 a year for those in year three and above.