Thousands march in Helsinki, and other cities, after a fatal assault on a man who protested against a Neo-nazi group.

Tens of thousands of people, including the Finnish prime minister and a former president, have taken to the streets of several cities across Finland to demonstrate against racism and violence in the country.

Saturday’s marches under the banner “Enough is enough” were staged in response to the fatal assault on a 28-year-old man earlier this month in the capital Helsinki who had protested against a neo-Nazi group, according to Finnish broadcaster YLE.

https://twitter.com/a0an0/status/779652918823755776

The man died on September 16 of his injuries, almost a week after he was involved in an altercation with members of the Finnish Resistance Movement.

The man was kicked and hit his head on the ground after reportedly spitting in front of members of the neo-Nazi group.

READ MORE: Finland far-right groups attack refugees

A 26-year-old man, who police said was an active member of the neo-Nazi group, was on Wednesday remanded in custody on suspicion of involuntary manslaughter.

Leading politicians, including Prime Minister Juha Sipila, condemned the incident, amid calls to ban racist organisations.

I'm truly moved by the amazing turnout and atmosphere at the #antiracism and #antfascism demonstration in my beautiful #Helsinki ❤️ pic.twitter.com/hQuypO2XAd — Yonatan Kelib (@yonatankelib) September 24, 2016

Police in Helsinki estimated that 15,000 people joined Saturday’s march to Senate Square.

The rally concluded with short speeches by, among others, former president Tarja Halonen, music and a moment of silence for the deceased 28-year-old.

Two anti-immigration protesters were arrested at two other locations in Helsinki, police said.

READ MORE: Finland court rules against sending refugee to Hungary

Sipila, the prime minister, attended an anti-racist protest on Saturday in the city of Kuopio.

He said the government would soon announce new measures “concerning extremist groups”, YLE reported.

Anti-racist events were also staged without incident in Tampere, Joensuu and Jyvaskyla.