The violence broke out as a demonstration by around 80 members of the anti-Islamic movement Pegida was drawing to a close.
Just as the march moved towards the city’s central rail station it was confronted by a group of around 1,000 leftwing activists who started throwing bottles and stones at the Pediga demonstrators and police, seriously injuring one female demonstrator in the process.
Police responded with pepper spray and batons arresting at least one woman.
The crowd repeatedly shouted the slogans “Frankfurt free of Nazis” and “All of Frankfurt hates the police”.