BLOOMINGTON, Ind. — Indiana tight end Blake Powers was arrested after hethrew a water balloon from one car into another, hitting an off-duty policeofficer.

Authorities said the 22-year-old Powers was released from the Monroe CountyJail after he was booked Monday night on a preliminary misdemeanor charge ofbattery.

According to a police report, Powers admitted that while a car in which hewas riding was stopped at a traffic signal, he had tossed a water balloonthrough the open window of another car, striking the driver in the head.

The driver, Paul Wampler, was an Indiana University police officer who hadjust gotten off work and was heading home. Wampler was in uniform in hispersonal vehicle.

Wampler then followed the other vehicle, which had four occupants, to aresidence where Powers admitted throwing the water balloon, the report said. Theoccupants said they had not realized the person in the other car was a policeofficer.

All four car occupants tested negative for alcohol use, said IU police Capt.Jerry Minger.

Powers, a senior, is a former starting quarterback who switched positionthis spring and is currently the No. 2 tight end.

Coaches were informed of the incident, said team spokesman Jeff Keag.

“We are aware of the situation, and any team discipline will be handledinternally,” he said.