A Syrian man has been sentenced to nine and a half years in prison in Germany over the fatal stabbing of a man in the eastern city of Chemnitz last year that triggered the worst far-right riots the country had seen for decades.

The verdict handed down in the city of Dresden in the high profile case comes just over a week before elections in the region in which the far-right Alternative for Germany (AfD) is set to make big gains.

It is almost exactly a year since the stabbing which led to thousands of right wingers, including neo-Nazis and football hooligans, marching in Chemnitz and clashing with left wingers and police.

The 24-year-old Syrian, identified only as Alaa S, according to the German court system, was convicted of manslaughter.

The Cuban-German victim, Daniel Hillig, died of his injuries after being stabbed in Chemnitz on the sidelines of a local festival.

He was also convicted of inflicting serious bodily harm on another victim, Dimitri M, who was injured but survived.

The trial took place in Dresden, the capital of Saxony state, rather than nearby Chemnitz because of the high level of public interest in the case.

"The accused was today found guilty of joint manslaughter and grievous bodily harm. He has therefore been sentenced to a jail term of nine years and six months," a spokeswoman for the court said.

Prosecutors had called for a 10-year prison sentence.

Defence lawyers, who had called for their client to be acquitted, argued there was no evidence that he had helped stab the victim and said they would appeal.

German authorities have also issued an international arrest warrant for an Iraqi suspect who has been on the run since the incident. They believe he was the main culprit in the killing.