Several police vehicles have been sent to the rural suburb of Keysbrook, south of Perth. ( ABC News: Keane Bourke )
Police are responding to reports of a serious incident south of Perth.
Members of the public have been urged to stay away from Keysbrook, a rural outer suburb about 35 kilometres north-east of Mandurah and 70km south-east of Perth.
In a statement, WA police said "significant resources" have been deployed to the area.
"Members of the public are asked to stay away from the area and await further advice," the statement said.
