A WATER main has burst in Armadale slowing traffic on South Western Highway and Armadale Road.
Main Roads have reported the hazard on Saw Road, near South Western Highway in the Armadale suburb of Mount Richon.
There are also reports of a possible gas leak.
Traffic is being impacted on Albany Highway, South Western Highway and Armadale Road.
Motorists are advised to seek alternative routes if possible and allow extra travel time.
Investigations into the burst main are underway.
