WA Police are investigating a fire that burnt a bridge in Wonnerup.
Busselton Detectives believe the fire started from an abandoned vehicle at around 5pm on Wednesday.
It spread to the wooden structure of the bridge on Tuart Drive, causing extensive damage to it.
The Department of Fire and Emergency Services attended the fire and extinguished the blaze.
The vehicle was also destroyed as a result of the fire.
Road closures are currently in place.
Detectives are investigating the circumstances of the fire with the assistance of the Arson Squad.
Investigators would like anyone with dash-cam footage in the vicinity around the time of the fire or anyone with information about the fire to contact Crime Stoppers on 1800 333 000 or make a report online at www.crimestopperswa.com.au.