Four people who were associated with a party bus in downtown Minneapolis were shot at 2:30 a.m. Saturday.

Their wounds are not life-threatening, Minneapolis police spokesman John Elder said. The shooting occurred near the Minneapolis Central Library by the intersection of Hennepin Ave and N. 3rd Street.

When officers arrived they found three people who were shot. They were taken to Hennepin County Medical Center. A fourth person arrived at the hospital on their own an hour later with “superficial” injuries from the shooting, police said.

Elder would not disclose whether the shooting had occurred on the party bus or outside of it. Any shooters had fled before police arrived and the department did not provide information on suspects Saturday morning.

In an unrelated shooting that night, an adult man was found with a “critical, life-threatening injury” at Penn Avenue North and N. 26th Avenue, Elder said.

The police responded to a report via their electronic shot monitoring system, which detects the sound of potential gunshots around the city, at 10:07 p.m. and found a man with a significant gunshot wound. He was taken to North Memorial Medical Center.

“We’re just waiting to see what happens and we’re obviously deep into our investigation,” Elder said.