Seems like Justin Bieber can't stay out of trouble. Today (Jan. 31), his private plane (en route to the Super Bowl) was grounded at Teterboro Airport under suspicion of marijuana possession.

Specifically, his plane allegedly reeked of weed, and officials became suspicious.

While federal officials searched Bieber's plane for drugs, multiple sources say Justin was moved to the customs terminal to wait.

After being detained for several hours, Justin was released when drug dogs and police found nothing illegal. Initially, it was thought the the dogs did locate weed in two cases of luggage.

"He came in, the jet smelled like weed, they were doing preliminary security checks that they don’t usually do as Teterboro is usually pretty relaxed, but because of the Super Bowl they are doing more security checks," a source for the airport said of the situation.

At the time of this incident, Justin and his posse -- 10 people plus his father -- were returning from Toronto, where Justin was being charged by police for assault on a limo driver.