Police in the German city of Köthen arrested two Afghan men on Sunday in connection with the killing of a 22-year-old local man.

A local public prosecutor told local media that the two men were arrested on suspicion of homicide and said authorities were investigating “in all directions.”

The suspected homicide comes soon after violent far-right protests rocked the city of Chemnitz, in eastern Germany, following the killing of another man, allegedly by two migrants. The demonstrations have sparked a tense national debate over immigration, the role of Islam, and the country’s fascist past.

“The violent death of a person must always be condemned. The relatives need our sympathy, and Köthen needs prudence,” Katja Pähle, the leader of the Social Democratic faction in Saxony-Anhalt’s regional parliament, said on Twitter, warning against entering “a spiral of violence.”

André Wendt, a politician with the far-right Alternative for Germany (AfD), reacted with an attack on the “establishment,” tweeting: “The killing goes on, but establishment parties and media have nothing else to do but defame worried citizens and silence critics.”

Far-right groups — including the former leader of a banned neo-Nazi group — have drawn parallels to Chemnitz and called for a Trauermarsch, or a march to commemorate the victim, to take place on Sunday evening, according to reports.