A spokesman for Scotland Yard shared that the matter has now been resolved.
"A 40-year-old woman has accepted a caution for causing a nuisance on school property following an incident at Thomas's Battersea school in September," a rep explained.
"The woman was arrested on suspicion of attempted burglary after she gained access to Thomas's Battersea on Tuesday, 12 September."
The Scotland Yard spokesman continued, "She returned on bail to a south London police station today and accepted a police caution for an offence under the Education Act."
"She was released with no further action in relation to attempted burglary. Thomas's Battersea is the school attended by Prince George."
The woman was arrested after she attempted to gain access to the school.
Police, who are at the school as part of Prince George's security arrangements, dealt with the situation as soon as it came to light.
Prince George, who is currently attending school for half-days, was reportedly not there when it happened.
Despite the scare, it's business as usual for the Cambridges with Prince William recently revealing his son has inherited every child's view on school... He's over it!
Duchess Kate's hubby was chatting to fellow Thomas’s Battersea parent, mum-of-two Louise Smith, during the school drop-off when he shared the funny revelation.
"It was really exciting meeting William," she gushed.
"He told me he’d just dropped Prince George off at school and he didn’t want to go."
Adding, "Sounds a bit like mine, really."