11:31 AM PT -- Apparently there was some sort of altercation during the incident, and LAPD is on the scene taking a report.
The driver of a TMZ Celebrity Tour bus is out of a job Saturday after hurling the n-word at someone.
The TMZ tour was not in progress at the time, nor were there passengers onboard, when the incident happened Saturday morning. The driver was not an employee of TMZ -- he worked for Exclusive Livery Service, the company that owns the bus which TMZ leases.
We have been in contact with the owner of the bus company, who tells us the driver was swiftly fired for his intolerable conduct.