A suspicious backpack found on a MAX train in Northeast Portland wasn't explosive, officials said Friday.

Portland police were called to the Hollywood Transit Center on Friday afternoon to investigate the backpack, which was found on a Green Line train, a police spokesman said. Members of the Metropolitan Explosive Disposal Unit used a remote device to cause a boom around 2:30 p.m., and the spokesman said afterward that public risk was diminished.

Wilfredo Reyes

The backpack had items protruding from it that made it look like an explosive, said Sgt. Chris Burley, spokesman. Burley later said authorities think Wilfredo Reyes left the backpack on the train and called 911 to report it as suspicious.

Transit officers found him near West Burnside Street and 5th Avenue shortly after investigators determined the backpack wasn't dangerous. Reyes was arrested on suspicion of second-degree disorderly conduct, interfering with public transportation, false report and possession of a hoax device, Burley said in a news release.

Reyes, 59, is being held in the Multnomah County Detention Center on $7,500 bail, records show. Burley said Reyes is set to be arraigned Monday.

The disruption comes two weeks after three men were stabbed in a violent attack aboard the Green Line that was about to pull into or was stopped at the Hollywood Transit station about 4:30 p.m. on May 26.

TriMet MAX is shut down due to suspicious device on train at Hollywood transit center/#Portland memorial. #pdx pic.twitter.com/gazEqvFwDY — Andy C. Ngo (@MrAndyNgo) June 9, 2017

Police ask anyone who has information about the incident to call Portland Fire & Rescue investigator Jason Anderson at 503-823-4636.

--The Oregonian/OregonLive