A shocking video has gone viral showing a Palestinian-American woman confronting US President Donald Trump's supporters, who allegedly called the woman's five-year-old cousin a "terrorist".

The video, which was shared on Twitter, showed one man and two women arguing with the woman, a teenage boy and a young girl on a street in Los Angeles, California. The woman, identified as Rawan, told the Raw Story that the confrontation happened on Sunday (10 December). The child was standing holding a "Dump Trump" placard when the trio started abusing her.

All the three Trump supporters were seen wearing T-shirts in support of the president.

"Can you say it on video, please? You called my 5-year-old cousin a terrorist," the Palestinian-American woman can be heard saying in the video. To which the Trump supporter, identified as Johnny Turano, replied: "Looks like one. It doesn't matter what age you are."

"You're calling a 5-year-old a terrorist," Rawan can be heard saying in the clip.

Rawan was then interrupted by Turano's daughter, Bianca, who said: "But this is America, we can say whatever we want. You're exercising your freedom of speech. We're exercising our freedom of speech."

Bianca also took her own video in Rawan's recording, which was soon uncovered and shared online. In the footage, she can be heard saying, "You guys are terrorists, get out of here. If you hate America so much leave."

The teenage boy who was with Rawan at time responds to that and yells, "I don't hate America — I just hate [inaudible] f*cks like you."

In Bianca's recording, all Trump supporters can be heard abusing other pedestrians also as Turano yells, "You can suck my d**k!"

"Dump Trump" placard
Palestinian-American five-year-old called terrorist by Trump supporters Twitter

Earlier in 2017, Turano, who goes by the nickname "Based Spartan", told the Vanguard he regretted becoming involved in the so-called "alt-right" movement after he "met some people that seemed so nice".

Turano had said he thinks the discrimination he sees Latinos face in Southern California is "spearheaded by the alt-right".