'Palestine Action': Hundreds arrested in London for supporting banned group; Keir Starmer appeals for calm amid tensions

London police arrested hundreds of pro-Palestinian protesters for supporting a banned group, Palestine Action, despite official requests to cancel the demonstration following a deadly synagogue attack in Manchester. Prime Minister Starmer urged respect for the Jewish community's grief, while police reported 442 arrests. The protest diverted police resources and underscored rising antisemitic and Islamophobic hate crimes.