Buckingham Palace 'maid arrested at Christmas party'... at All Bar One

A Buckingham Palace maid was reportedly arrested after a staff Christmas party went royally wrong and turned into a boozy brawl - at All Bar One.

Royal staff were said to have gathered for drinks at the Palace on Tuesday night, with around 50 making their way to Victoria Street to carry on the festivities.

But a 24-year-old woman - reported to be a housemaid - allegedly threw a punch at the manager of the bar.

She was also said to have hurled glasses around, despite attempts to calm her down, and was arrested after police came to the bar. 

A witness told The Sun: 'I've never seen one person get that crazy during a night out. 

'She was on another level.'

The newspaper said police came to the bar on Tuesday, around 9pm. 

A woman was arrested for common assault, damage and being drunk and disorderly and was put in a cell overnight before being released with a fine.

Royal staff had boozy drinks at the Palace around  4pm without incident, and the All Bar One afterparty had been pre-arranged.

Despite being an 'informal social gathering' and not an official Palace Christmas party, the Palace said it will be fully investigated and 'appropriate action taken'.

Met Police said: 'At 21.21hrs on Tuesday, December 10 officers were called to a bar in Victoria Street, SW1, following reports that a customer had smashed glasses and attempted to assault a member of staff.

'Officers attended and arrested a 24-year-old woman on suspicion of common assault, criminal damage and being drunk and disorderly.

'She was taken into custody and released the following evening having been given a penalty notice for disorder.'

A Buckingham Palace spokesperson told The Sun: 'We are aware of an incident outside the workplace involving a number of Household staff who had previously attended an early evening reception at the Palace.

'While this was an informal social gathering, not an official Palace Christmas party, the facts will be fully investigated, with a robust disciplinary process followed in relation to individual staff and appropriate action taken.'

MailOnline has contacted police and the Palace for further comment.