RedactedNarrative: Operator of PWC 1 was operating on the river in the area of the island south of Rt 291 Bridge. Operator 2 of PWC 2  was traveling South on the river East of vessel 1. Operator 1 was doing donuts approximately 10 ft from vessel 2. Operator 1 maneuvered vessel 1 into vessel 2's line of travel. Vessel 2 was left insufficient amount of time to avoid a collision. The bow of vessel 2 struck the port side of vessel 1. Two injuried.