11.04am A man in his 60s is being transported to Royal Perth Hospital with leg injuries. The extent of his injuries is not yet known, but are believed to be serious.
10.18am The Harvey volunteer rescue service has advised the man is not trapped, but emergency crews are still turning out the scene.
10.01am The Harvey volunteer rescue service has also been dispatched to assist with the rescue.
9.52am The RAC rescue helicopter has been called to a farming incident in Myalup.
The Mail understands a man is trapped in a piece of machinery.
More to follow.