Two teenagers have been seriously injured in a boating incident in Mandurah.
A 17-year-old and 18-year-old boy were on board a boat that was travelling north along Sticks Canal towards Mandurah around 6.50pm last night.
It is believed their boat collided with another vessel in the area.
The 17-year-old was thrown from the boat into the water and suffered spinal and facial injuries.
He was taken to Royal Perth Hospital by ambulance.
The 18-year-old also received facial injuries and was taken to Peel Health Campus.
The boat has been seized for further investigation.