Police were called to funnyman Mike Epps' birthday celebrations in Hollywood in the early hours of Tuesday morning (20Nov12) after a gun was fired.

The actor/comedian, who turned 42 on Sunday (18Nov12), was partying with pals at the Tru nightclub but the bash was disrupted when a fight allegedly broke out between Epps' group and other clubgoers.

Editors at Tmz.com report a gun was pulled out and fired, prompting patrons including Epps to run for the doors.

Cops are reportedly investigating and are keen to speak to Epps about the incident.