Buckingham Palace says it will investigate staff working for the royal family following an after-party in London which the Sun newspaper reported had ended in a “punch-up” and “bar brawl”.
Workers attended an early evening reception at Buckingham Palace on Tuesday before heading to a nearby bar to carry on the celebrations.
But their partying got out of hand and police were called “after glasses were hurled and punches thrown,” the Sun said.
Know the news with the 7NEWS app: Download today 
Officers arrested a 24-year-old woman on suspicion of common assault, criminal damage and being drunk and disorderly at a central London bar on Tuesday evening, London’s Metropolitan Police said.
“Officers were called to a bar in Victoria Street following reports that a customer had smashed glasses and attempted to assault a member of staff,” a police spokesperson said.
The woman was released the following day after being handed a penalty notice for disorder, the spokesperson added.
Buckingham Palace said on Friday that palace officials were aware of an incident which had taken place outside the workplace following a reception at the official London residence of King Charles.
“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,” Buckingham Palace said in a statement.