An investigation into a Mardi Gras night fight at a New Orleans bar has resulted in three New Orleans police officers being re-assigned.

The fight was reported at the Beach Corner Lounge in the Mid City neighborhood. It involved "a number of" officers, four employees of the authority that runs buses and streetcars and several other people, Police Department spokesman Sgt. Joe Narcisse confirmed.

The department's Public Integrity Bureau opened a criminal inquiry the night of the incident, Narcisse said. Three officers were reassigned to administrative duties the following day.

Narcisse declined to give the names of officers.

The fight began Feb. 5 shortly before 8 p.m., according to court records.

One man was booked on gun charges in the wake of the fight. Those charges were dropped by the district attorney's office because several witnesses gave conflicting statements, an office spokesman said.

Narcisse said the department will sort through the conflicting accounts of the fight. "It's early in the investigation," he said.