A bushfire that started this morning at Kings Park has closed major city roads as well as the park itself. The fire has since been contained.

Among the road closures being reported on the Main Roads website are: Thomas Street in both directions from Rokeby Road to Kings Park Road; the left lane (westbound) of Kings Park Road from Fraser Avenue to Thomas Street; and the intersection of Park and Pool avenues.

All businesses and cafes in Kings Park have been closed until further notice, and classes have been cancelled at Next Gen Kings Park.

The ABC reports that the fire began shortly after midnight; residents in nearby Subiaco and Shenton Park were issued with a watch-and-act notice. The fire is being treated as suspicious.

The Kings Park fire is one of a handful of fires burning in the state today with fires also reported in Gidgegannup and Augusta in the south-west.