Steve Whitmore, a spokesman for the Los Angeles County Sheriff's Department, said the incident allegedly occurred outside a Mexican restaurant Friday night.
He said the 54-year-old former James Bond star was not arrested or detained.
Messages left Tuesday for Brosnan's publicist, Jennifer Allen, were not immediately returned.
Whitmore identified the alleged victim as Robert Rosen, but declined to give more details because the investigation is ongoing.
Rosen could not be reached for comment.
After WWII, the Soviet army left Austria, and the latter had always remained a neutral state and never joined NATO
Russia experienced default on August 17, 1998. Today, 20 years after those events, the economic situation in Russia does not seem stable to many