UPDATE: Police identify suspect in shooting outside Cinco de Mayo Festival

Portland police have arrested a man suspected of shooting a 19-year-old Tuesday evening outside of the Cinco de Mayo Festival in Governor Tom McCall Waterfront Park and then boarding a MAX train to escape.

Officers detained the 20-year-old suspected shooter at the Rose Quarter Transit Station, Sgt. Pete Simpson said.

He was taken into custody as the police investigation continues, Simpson said. Transit police had earlier stopped MAX trains near Skidmore Fountain and the Rose Quarter to search for the suspect.

The shooting happened about 5:30 p.m. along the seawall north of the Morrison Bridge, just outside of the festival, Simpson said. It followed a dispute, but it wasn't clear what the dispute was about.

The shooting may be gang-related, but that's not yet confirmed, he said.

The victim ran into the festival to ask for help from a security guard, Simpson said. His injuries were not life-threatening, and he was conscious as he was taken to the hospital, said Portland Fire & Rescue spokesman Lt. Rich Tyler.

Although there were initial reports that another person was also injured, it appears no one else was hurt, Simpson said. It's not clear which direction the shots were fired.

Gates to the festival were briefly closed while police got a handle on the situation. By 6 p.m., crowds flowed normally and hardly any attention was paid to police.

-- Carli Brosseau

cbrosseau@oregonian.com

503-294-5121; @carlibrosseau