On Thursday morning at the Heaton Park Hebrew Congregation synagogue – as in synagogues all over the world – Jews congregated to mark Yom Kippur.Then the very worst happened: a terror attack. A car was driven at members of the public and a man was stabbed. At the time of writing, two people have been killed and three others seriously injured. Police shot dead the suspect.The Guardian’s north of England editor, Josh Halliday, reports from Manchester, describing to Helen Pidd what we know so far about what appears to be the worst antisemitic attack in the UK in living memory Photograph: Christopher Thomond/The Guardian