PORTLAND, Ore. (KOIN) — Portland police declared an “unlawful assembly” after some people from a crowd of protesters outside the East Precinct in Southeast Portland dragged dumpsters from the street and put them near exit and entrance doors of the building.

Officers pushed the crowd away from the precinct around 10 p.m. Groups lingered around the area but authorities said the “majority of the hostile group” was gone by 11:30 p.m. No one was arrested.

Portland Police Bureau announced in a tweet that they asked the group not to commit any criminal activity.

The demonstration began at Ventura Park in Southeast Portland at 8:30 p.m. according to Twitter posts.

The online flyer called for an “autonomous direct action.” The park is within a short walking distance to the Portland Police East Precinct.

There was initially a planned event for Lents Park Saturday night but it was moved to Ventura Park instead.

Friday, PPB arrested three people during a protest-turned riot in downtown Portland. The latest demonstrations are in response to a PPB officer shooting and killing a man at Lents Park Friday morning. The man was later identified as 46-year-old Robert Delgado.

PPB officials said they were responding to a call that morning about a man “pointing a gun” in the park.

Multnomah County District Attorney Mike Schmidt said in an emailed statement Saturday that the DA is in the early stages of a “rigorous and professional criminal investigation,” regarding the shooting at Lents Park.

“An officer’s use of deadly force is likely the most critical and dangerous decision they will make in their career as a public servant,” Schmidt said. “As a community—we are hurt and vulnerable right now. I am sensitive to the community’s concern about yesterday’s deadly police shooting and the calls for answers and reform. Our investigation needs to be methodical and consistent. We will not be rushed in our decisions. All legally admissible evidence must be gathered and reviewed. It is expected that this case will be presented to a grand jury to determine whether the use of deadly force was a legal act of self-defense and/or self-defense of others. We remain committed to an open and transparent process. Our objective is to seek answers.”

But Schmidt also condemned the destruction from Friday’s riot in downtown Portland.

“The deliberate and criminal actions of individuals rioting in downtown Portland on Friday night significantly endangered life and property. It is unacceptable,” he said.