One of Brisbane's iconic tourist boats has crashed into an unknown object while carrying about 50 passengers, causing one person to fall through the floor and onto the lap of another passenger on the toilet below.
The impact smashed a hole into the upper deck of the Kookaburra Queen II, tearing a railing off.
A passenger said they heard a bang as another passenger fell through to the lower deck.
Ambulance crews treated people for minor injuries at Eagle Street Pier, where the ship docked, with three taken to hospital.