A Muslim couple have been harassed in Portland and told 'go back to your f***ing country' just days after two people were stabbed to death by a white supremacist.

The couple were targeted on Friday in Northeast Portland by a man as he made hand gestures that resembled him pulling the trigger of a gun while he yelled at them.

Police are investigating after the victims filed a report but no one has been arrested yet.

Zakir Khan, a member of the Council On American-Islamic Relations, has urged police to apprehend the offender.

The Muslim couple in Portland were verbally attacked on Friday - a week after Jeremy Joseph Christian (above) allegedly stabbed two men to death after they stepped in to protect a teen girl wearing a hijab

'Given the recent deadly attack in Portland, we urge the mayor and local law enforcement authorities to swiftly apprehend the alleged perpetrator and to bring any appropriate hate crime charges,' Khan told Oregon Live.

It came a week after Jeremy Joseph Christian allegedly slit the throats of Ricky Best and Taliesin Myrddin Namkai-Meche on a MAX train.

The two innocent victims had stepped in to defend a 16-year-old girl and her Muslim friend after Christian allegedly launched a racist verbal attack on them.

He allegedly shouted at them to 'go back to Saudi Arabia', to 'get out of his country', and to 'kill themselves'.

Taliesin Myrddin Namkai-Meche (left) and Ricky Best (right) were stabbed to death by Christian on the Portland train on May 26

Micah Fletcher, who was also stabbed but survived, appeared in court revealing a giant scar as he watched suspect Christian's arraignment on Tuesday

Micah David-Cole Fletcher, who also intervened in a bid to stop Christian's tirade against the girls, was stabbed in the neck and required surgery to remove bone fragments from his throat.

Christian appeared in court for the first time on Tuesday, where he began shouting, 'You call it terrorism, I call it patriotism'.

The 35-year-old suspect, who wore a blue jail jumpsuit, stood with an officer either side as he yelled out bizarre slogans such as 'death to the enemies of America, leave this country if you hate our freedom.'

'Free speech or die Portland, you got no safe space. This is America, get out if you don't like free speech,' he shouted as he was arraigned on multiple murder charges, CNN reports.

Christian is charged with two counts of aggravated murder, attempted murder, two counts of second-degree intimidation and being a felon in possession of a restricted weapon.