At least nine police officers were injured and four police vehicles were set on fire in connection with Rasmus Paludan's demonstration in central Örebro.
A riot broke out when several hundred people had gathered to protest the gathering.
Swedish Prime Minister Magdalena Andersson (S) reacts strongly to the riots of recent days.
"I strongly condemn the violence that is now being directed at the police and the general public in Örebro.
Yesterday and during the night we saw similar scenes in Linköping and in Norrköping.
Several police officers have been injured while working in their service to defend democratic rights ", she writes in a statement to TT.
The Green Party's Märta Stenevi also condemns the events.
"The riots are completely unacceptable, and exactly what Paludan wants to achieve."
she writes on Twitter.
Called to the Committee on Justice
The escalating violence has led the opposition to criticize the government.
The moderates want to see more tools for the police to intervene in the event of disturbances, such as water cannons and rubber bullets.
In addition, the party calls the Minister of Justice and Home Affairs Morgan Johansson (S) and the National Police Chief to the Justice Committee for a hearing on how the police should act in similar efforts in the future.
"The attacks on the police that we saw yesterday must not happen again.
The price is much higher than broken police cars, "writes the Moderates' legal policy spokesman Johan Forssell in a statement.
In a comment to SVT Nyheter, Minister of Justice and Home Affairs Morgan Johansson (S) writes that they have full confidence in the work of the police and assume that they take the necessary measures to restore order.
"I am, of course, prepared to come to the Justice Committee together with the National Commissioner of Police to talk about how the police handle situations like these."
"Should not be able to happen"
Liberal leader Johan Pehrson calls what happened "an orgy of tragedy and idiocy".
"What we saw tonight / yesterday should not be able to happen.
It is the government's responsibility to ensure that the police have the resources and tools required to maintain control in these situations and protect democratic core values.
It does not work now. "
he writes on Twitter.
The Sweden Democrats' Jimmie Åkesson also points a boot at the government in connection with the events.
"What we are seeing is the result of a lax and naive policy.
Terrible scenes have taken place - and are still taking place - around Sweden. "
writes Åkesson (SD) on Twitter.