German police and security officials have been criticised over violence during a far-right protest in the eastern city of Chemnitz that left at least six people injured.
The protest late on Monday, sparked by the killing of a 35-year-old German man in an altercation with migrants over the weekend, erupted into clashes between neo-Nazis and left-wing counter-protesters.
German news agency dpa reported that Chemnitz police acknowledged having mobilised too few officers for the demonstration.
Chemnitz is in the eastern state of Saxony, which has long been a hotbed of anti-migrant sentiment. The far-right Alternative for Germany party received almost a quarter of the vote in Chemnitz last year.
The opposition Green party accused interior minister Horst Seehofer of fanning anti-migrant sentiment in recent months and urged him to think about resigning after the violence.
“The police in Saxony are in a difficult situation,” Mr Seehofer said. “Should it be requested, the federal government will provide police support.”
Chemnitz police said they had arrested a 22-year-old Syrian and a 21-year-old Iraqi on suspicion of manslaughter over the death of the German man after a street festival early on Sunday.
Prosecutor Christine Muecke said the killing was preceded by a verbal confrontation that escalated.
