Frank-Walter Steinmeier made the condemnation after attacks on lawmakers at work or on the campaign trail.

Fears of political violence are growing in the United States ahead of next week's midterm elections, with US security officials saying unconstrained disinformation and political vitriol is fuel for attacks, such as the one on House Speaker Nancy Pelosi’s mansion.

Political polarity in the US has raised concerns that the US could experience political violence.

Brazilian President Jair Bolsonaro and his front-runner opponent Luiz Inacio Lula da Silva hold rival rallies within spitting distance of each other as the presidential campaign will come to an end on Saturday.