Police in London and Manchester arrested dozens of people on Saturday for supporting a banned Palestinian rights organization as protests over the British government’s decision to outlaw the group continued for a third weekend.

There have been a number of demonstrations outside the Bell Hotel in Epping, believed to be housing asylum seekers Six people have been arrested following the latest protest outside a hotel used to house asylum seekers in Essex.

A cast member of Verdi’s “Il Trovatore” unfurled a Palestinian flag at London’s Royal Opera House as someone backstage tried to grab it from them. A spokesperson for the Royal Ballet and Opera distanced themselves from the protest,