Updated 10 p.m.

A group of young people broke into a furnished rental in Northeast Portland on Halloween night and threw a wild house party that attracted 150 guests who trashed the apartment and scattered when cops arrived at 3:30 a.m, police, neighbors and one of the property’s owners said.

Then in a display of youthful bravado, according to authorities and social media posts, the suspected organizers returned hours later and tried to throw a second one.

Police have arrested one person in connection with the brazen celebration and are searching for leads on others.

While raves are nothing new, this one seems to be a rare case involving a suspected break-in and blowout in one of the city’s thousands of furnished rentals.

“I cannot think of another instance where this has happened,” said Lt. Tina Jones, a Portland police spokeswoman.

Neighbors said the boozy brouhaha kicked off about 9:30 p.m. on the holiday in the city’s Hollywood District as cars began rolling up along a quiet stretch of Northeast 45th Avenue off Sandy Boulevard.

Soon, according to neighbors, more than 150 mostly teenagers — many of them dressed in costume — were spilling in and out of the three-bedroom apartment, which is part of a larger mixed-use building.

“It was an absolute rager,” said Brett Roberts, a longtime resident of the block. “They all looked like they were straight out of high school.”

For six hours, the party thrummed unabated. Drinks flowed and bodies moved to a DJ’s dance music, video taken inside the rental shows.

Throngs of boisterous guests also congregated on the property’s second-floor balcony, neighbors said. Some hooped and hollered. Others pitched bottles into the air.

“The street was completely covered in glass,” said Nick Jamison, who lives a few doors down. “Just 40s (ounce) and beer bottles smashed everywhere. It was pretty gnarly.”

Police showed up at 3:30 a.m. last Friday when officers responded to calls of a shooting at the party, Jones said.

Seven cop cruisers, an ambulance and a fire truck arrived, dispatch records show. People started running out the back of the residence when officers stepped inside, Jones said.

Police found no one injured, no evidence of gunfire and made no arrests, according to Jones. The officers were also unable to track down the owner of the property, which an officer described in a police report as an Airbnb rental.

Records show the home is not registered as a short-term rental, said Michael Liefeld, an official with the city’s Bureau of Development Services.

Darren Stowell, one of the property’s owners, said the apartment is in transition between being a short-term and long-term rental.

“There were no tenants — short or long term — associated with this incident,” Stowell said in an emailed statement. “The apartment was vacant and the kids broke in and found it empty.”

Hours after the Halloween party, invites for a second bash at the same location that night started spreading across Instagram, Snapchat and other social media.

One of the apparent organizers also went on Snapchat to boast about the Halloween bash and promote the next one, according to video obtained by The Oregonian/OregonLive. They did not respond to a request for comment.

Others chimed in with posts of their own.

“Last night was lit!” wrote wrote one person on Snapchat, who shared video of the Halloween dance party. “Round 2 tonight.”

Things, however, did not go quite according to plan.

Guests booked to stay at the Hollywood rental arrived that afternoon, found the place turned upside down and demanded a refund, said Juli Ullauri, who identified herself as a manager for the property.

She said she showed up to find vomit-stained walls, soiled floors and ransacked rooms. There were smashed windows, broken dishware and a hole punched through a wall.

“The place was totally trashed,” she said during an interview at the apartment Wednesday.

There was also another unexpected sight at the home — seven strangers who appeared to be setting up for that night’s party.

“They were hiding below the deck,” the property manager said.

The group fled, taking two cases of liquor bottles they had brought with them, she said.

The property manager contacted police, who showed up. One of the strangers who had fled later returned and was arrested, police said.

Records show Isaiah Maza, 18, was booked into the Multnomah County jail on suspicion of first-degree trespassing. Maza could not be reached for comment.

Meanwhile, the apparent organizer had hopped back on Snapchat to post a video from inside a moving car.

“So the cops rolled up to take pictures of the damage done to the house last night,” the organizer said. The organizer said they were looking for a new place to host the party and would give an updated location soon.

Apparently, not everyone got it. Dozens arrived at the rental house last Friday night, according to police and neighbors.

Jones said the case has been referred to the police bureau’s burglary task force. Anyone with information is asked to call 503-823-3333.

-- Shane Dixon Kavanaugh; 503-294-7632

Email at skavanaugh@oregonian.com

Follow on Twitter @shanedkavanaugh

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