An overturned pontoon sent five people to hospital overnight.
An adult, two teenagers and two infants have been taken to Peel Health Campus with minor injuries after their pontoon overturned.
Around 7.20 last night 13 people were on board a pontoon on the Mandurah estuary when the it took on water and capsized near Dudley Park boat ramp.
Everyone on board ended up in the water, including a four month old baby.
Peel Water Police and Mandurah Volunteer Marine Rescue vessels attended to provide assistance.
Two infants, the four month and a six month old, were taken by ambulance to Peel Health Campus, along with two teenagers and another woman.
An officer from the Department of Transport Marine Safety also attended and will make inquiries into the incident.
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