German police forcibly broke up a demonstration by Polish nationalists when the Poles attempted to march with a large cross to a memorial site for Polish victims of Nazi Germany during the Second World War.
Video footage of June 16 from the incident shows a group of men wearing yellow vests singing a patriotic song based on a poem written in opposition to attempts at the Germanisation of Poles under the Prussian partition in the early 20th century.
They were attempting to carry the cross to the site where the German authorities are planning to construct a memorial to Polish victims of the German occupation during the war.