(NBC) - A runaway boat ran in circles on an Indiana lake Saturday after 10 people, including the one behind the wheel, were thrown off.
The 21-foot boat ran amok on Lake Gage at about 30 mph after the operator and nine others were thrown from the vessel.
The boat rammed a dock, then a patrol boat with two conservation officers on board.
One of the officers was able to hop aboard and stop the boat.
Four of the people who were thrown were seriously injured, including one suffering a skull fracture.
Another lost part of an arm.
Investigators said the boat's 20-year-old operator was speeding when she cut into a sharp turn, throwing everyone off.
Dominique Effinger was arrested, accused of boating while intoxicated causing injury and being a minor in possession of alcohol.
Courtesy: NBC News Channel
