NSW Police looking for armed pedestrian

A search is underway for a man who was seen walking along a busy Sydney road armed with a shotgun.

Police are appealing for public information to find the man, who was allegedly seen carrying a shotgun while walking along a busy road in Lilyfield in Sydney's inner west on Tuesday.

The man is believed to be in his 50s or 60s, Caucasian, balding with white hair and stocky build.