Malmo, a town in Southern Sweden, was set ablaze on Friday, hours after a gathering of at least 300 people protested against anti-Islam activities, the police said.
Protesters threw stones at police officers and burnt tyres, leading to detention of 15 people, reported local media.
The demonstration was connected to an incident earlier in the day during which protesters burned a copy of Quran, the Islamic holy book.
According to local reports, several anti-Islamic activities took place in Malmo on Friday, which triggered the riots.
It is also said that Hard Line, a Danish far-right political party’s leader Rasmus Paludan, had been denied permission to have a meeting in Malmo and was stopped at the Swedish border, anticipating law and order situation. He was also banned from entering Sweden for two years.