Subject 1 (Vessel # 1) and subject 2 (vessel #2) were operating PWCs on lake Grapevine when subject 2 stopped his PWC and was drifting.  subject 1 approached subject 2 and was coming too fast to stop in time to keep from colliding with the other PWC.  Vessel #1 struck Vessel # 2 and slid up the stern and hit subject 2 in the chest area. subject 2 was transported by Flower Mound Fire/Rescue for medical treatment, possible broken ribs.
Report filed by Flower Mound Police Department.
Flower Mound                  