Two off-duty police officers have been arrested and another five have been questioned over an incident at the Galgorm Hotel, BBC News NI understands.
One of the officers, a man aged 30, has been charged with drink-driving, common assault and disorderly behaviour.
The incident happened at the hotel near Ballymena in County Antrim on Thursday.
The Police Service of Northern Ireland’s professional standards department has started a misconduct inquiry.
It is understood that five officers were questioned by the professional standards team on Saturday afternoon.
