Colorado police have determined that the shooting at the ScHoolboy Q, Nas and Flying Lotus concert in Denver appears to be calculated, and not just a random act.

"This is not just a coincidence. We think there is probably more to it than that," a spokeswoman for the Jefferson County Sheriff's Office said, according to the AP. "It does seem to be more targeted than random."

Schoolboy Q, born Quincy Matthew Hanley, and at least four other people were traveling in a white SUV that was fired on. The vehicle continued about 15 more miles, reportedly in search of a hospital, before the Denver police stopped them and sought medical attention for some passengers. Hanley and the another uninjured passenger were briefly handcuffed and detained after the shooting but released after police determined they weren't suspects.

Schoolboy Q himself was unhurt, but three other passengers sustained non-life threatening injuries. One victim was released from the hospital Friday morning.

The concert at the historic Red Rocks venue was a benefit held to support The Gang Rescue and Support Project of Denver, but Kelly said the police cannot confirm if the shooting was gang-related.

Q tweeted after the dust settled to let his fans know he's OK. He's currently on tour supporting his latest album Oxymoron and will perform in Iceland on Sunday night and New York on June 25, as noted in his tweets.