Boat driver arrested over WA crash

A boat driver has been arrested after a 15-year-old girl he was towing on an inflatable was seriously injured.

The girl was riding on two ski-tubes, commonly known as sea biscuits, when she crashed into an empty boat near the Bunbury Jetty on Wednesday.

The 46-year-old is scheduled to appear at Bunbury Magistrates Court on January 25, charged with causing grievous bodily harm.

The girl was taken to hospital and a 15-year-old boy she was riding with suffered minor injuries.