Oregon state police were poised on Monday to return to Portland after a fatal shooting this weekend, as clashes escalated between an armed right-wingers and anarchists. One reported member of a right-wing group was shot and killed over the weekend.

Governor Kate Brown, a Democrat, released a plan Sunday night in response to violence that she said was stoked by an armed right-wing group called Patriot Prayer. In addition to bringing in state police, Brown's plan calls for the FBI and the U.S. Attorney to commit more resources to prosecuting criminal offenders, Reuters reports.

“Every Oregonian has the right to freely express their views without fear of deadly violence. I will not allow Patriot Prayer and armed white supremacists to bring more bloodshed to our streets,” Brown said in a statement.

Protests have roiled downtown Portland every night for more than three months following the May 25 death George Floyd.

On Monday, Portland police said 29 people were arrested overnight after taking part in an unlawful gathering in northeast Portland where rocks and eggs were thrown at officers.

Two people arrested had loaded handguns and others had knives and rocks, the police said in a statement.