Police are searching for a man after he committed an indecent act in front of a group of Armadale children near a school on Wednesday.
At around 11am on November 22 a group of children were on Tijuana Road in southeast Armadale near Dale Christian School when police allege the man committed the indecent act.
He then proceeded to walk northeast in the direction of Eighth Avenue.
The man was wearing black Everlast branded tracksuit pants with write whiting, black shoes and no shirt.
He was described as fair-skinned, between 40 and 50-years-old with a slim build and short grey hair.
He had head and chest tattoos.
Gwynne Park Primary School principal Peter Elstermann said schools in the area had been immediately warned after the incident.
The school also sent out emails to parents informing them about the incident.
Anyone with information was asked to call Crime Stoppers on 1800 333 000 or make a report online at crimestopperswa.com.au.