Home secretary Theresa May has said Britain must redouble its efforts to wipe out anti-Semitism, speaking at an event to commemorate the four Jewish people killed in Islamist extremist attacks in France.
"The dreadful events in Paris are a reminder of the serious terrorist threat that we face."
"The attack on a Jewish supermarket, where four people were killed, is a chilling reminder of anti-Semitism, not just in France but the recent anti-Semitic prejudice that we sadly have seen in this country."
"I know that many Jewish people in this country are feeling vulnerable and fearful and you're saying that you're anxious for your families, for your children and yourselves."
"I never thought I would see the when members of the Jewish community in the United Kingdom would say they were fearful of remaining here in the United Kingdom."
Scotland Yard promised extra patrols in Jewish areas and around synagogues and other Jewish centres following the gun attack on a kosher Supermarket in Paris,
The French capital was ripped apart by a three-day rampage by Islamist gunmen who murdered 17 people.
French-born brothers Cherif and Said Kouachi massacred 12 people at the offices of satirical magazine Charlie Hebdo. A day later, Amedy Coulibably killed a french policewoman before killing four hostages at a Kosher supermarket.