Police have confirmed an attempted break-in at Prince George's school

And they are already reviewing their security measures

Prince George started primary school last week, with the four-year-old enrolling at Thomas’s Battersea, a private prep school in south London.

Prince George, accompanied by his dad, the Duke of Cambridge, was met on arrival by the Head of Lower School who escorted them both to the reception classroom. There was no need to worry though with one friendly face already in the classroom, coming in the form of George's distant cousin, four-year-old Maud Elizabeth Daphne Marine Windsor. That's right - there are two little royals in the reception class.

This could however have made the school more of a target.

With the school teaching 560 pupils (aged 4 to 13) and boasting alumni from royals to A-list celebrities, they take security very seriously.

However, an incident occurred yesterday, with the Metropolitan Police confirming that a woman in her forties had been arrested on suspicion of attempting to break into the school.

'We are working with the school, which is attended by His Royal Highness Prince George, to review its security arrangements after the incident,' the Metropolitan Police announced in a statement following the incident. 'Police were alerted and officers attended immediately after the issue came to light.'

The statement continued: '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.'

A spokeswoman for Kensington Palace also confirmed the reports, stating: 'We are aware of this issue but won't comment on security matters.'

While Prince George was at school on Tuesday, it is unlikely he was on the premises when the incident occurred.