PORTLAND, Ore. -- Hundreds of pro-Trump protesters and counter-protesters have gathered in downtown Portland on Sunday.

Portland police tweeted that one person has already been arrested by the Federal Protective Service, and that officers are working to keep the separate groups separated.

"Protesters should stay with their groups, not attempt to cross streets to escalate tensions," the police said in their tweet.

Police also tweeted that any weapons or things that could be used as weapons wil be seized by police, including guns, knives, sticks, bats, fireworks, etc.

At least five different rallies or protests are planned in different parts of Portland this afternoon, with four of them scheduled for downtown.

A large police presence is expected in downtown Portland because so many of the rallies are planned with conflicting messages and within close proximity to each other.

A Trump Free Speech rally is scheduled for the afternoon, and several groups are planning nearby rallies in opposition.

KGW will have live-streaming coverage throughout Sunday's rallies. Watch live-stream coverage here.

Noon Sunday

A demonstration called Defend Portland! No Nazis On Our Streets! is scheduled for noon at Chapman Square.

12:30 p.m. Sunday

Portland Stands United Against Hate is set for City Hall at 12:30 p.m.

Another rally, Portland Labor Against the Fascists, is scheduled for 12:30 p.m. at Terry Schrunk Plaza.

1 p.m. Sunday

Don't Shoot Portland has announced that it is holding a free barbecue Sunday at 1 p.m. at Dawson Park in North Portland, called "Black is Beautiful and Our Voices Matter."

2 p.m. Sunday

The Trump Free Speech rally, hosted by the group Patriot Prayer, is scheduled to start at 2 p.m. in the Terry Schrunk Plaza at 364 Southwest Madison Street.

Mayor Wheeler: Sunday's alt-right rally will go on as planned

The following agencies will be helping the Portland Police Bureau ensure public safety on Sunday:

  • Oregon State Police
  • Multnomah County Sheriff's Office
  • Federal Protective Service
  • Department of Homeland Security
  • Federal Bureau of Investigation
  • United States Attorney's Office
  • Multnomah County District Attorney's Office
  • Portland Fire & Rescue