Update
A 16-year-old boy was taken to Peel Health Campus via St John Ambulance after he was hit by a truck in Pinjarra after 9.30am this morning.
He was crossing the South-Western Highway near Pinjarra-Williams Road when he was hit.
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READ NOWA Peel Health Campus spokeswoman said the man was in a serious but stable condition.
The spokeswoman said he was transferred via helicopter to Royal Perth Hospital after 11.30am.