Turkey recalled its envoy to Berlin and threatened further measures after Germany’s parliament labelled the World War I massacre of Armenians by Ottoman forces as genocide.

The Bundestag or lower house of parliament overwhelmingly approved a non-binding resolution on the 1915-16 killings, in a move touching a notoriously raw nerve in Turkish-European relations. Only one MP voted against and another abstained.

The use of the word genocide goes to the heart of a long-running battle for world opinion between Armenia and Turkey.