Dozens of protesters gathered at an ICE facility in Portland, Oregon, on Saturday night 

Video posted on social media showed the crowd chanting: 'No borders! No nations! Abolish deportations!' 

Officers with the Federal Protective Service declared an unlawful assembly at 10pm 

Protesters who resisted orders to disperse were targeted with tear gas and flash bangs in the streets 

The same ICE building was targeted by 200 Antifa protesters last Wednesday after Joe Biden's inauguration

Meanwhile Seattle's interim police chief Adrian Diaz announced a new policy for arresting and prosecuting people who vandalize during protests 

Biden's team have said they are monitoring the unrest but have not announced a plan to address it