A state police spokesperson said Bieber, while “horsing around with members of his staff,” threw water balloons at two troopers, the 11 News I-Team’s Jayne Miller reported.
One of the balloons hit a trooper’s gun belt and burst, and the other brushed a trooper on the chest but didn’t burst, Miller reported.
It happened outside a trailer Bieber was using before the concert. The troopers were there for crowd control.
No incident report was written by police. A state police spokesperson said it was “inappropriate behavior” by Bieber but said no further action would be taken by police.
The 16-year-old Bieber performed in front of a sold-out crowd Sunday night at the Timonium Fairgrounds. Tickets sold out less than 20 minutes after they were made available.
The Canadian performer’s debut single, “One Time,” was released worldwide in 2009. His first studio release, “My World 2.0,” was released in March.
Safety concerns have been an issue at some of Bieber’s appearances, including Sunday’s in Maryland. On the WBAL-TV Facebook page, a number of posts described unruly crowd behavior at the fairgrounds.
One commenter said it “was the most dangerous thing I have ever been a part of.” Other commenters were critical of the security and staging areas for the concert.