Police step up security in Jewish areas across London

Home Secretary Theresa May says efforts to stamp out anti-semitism in Britain must be "redoubled", after members of the Jewish community expressed concerns over their safety.

Speaking at an event to commemorate Jews that died during the terror attacks in France, May said: "I never thought I would see the day when members of the Jewish community in the United Kingdom would say they were fearful of remaining here in the United Kingdom."

She said the recent attack on a Jewish supermarket in Paris - which left four innocent people dead - was a "chilling reminder of anti-Semitism, not just in France but the recent anti-Semitic prejudice that we sadly have seen in this country".

Read: CCTV captures defacing of Holocaust memorial poster

After Scotland Yard assistant commissioner Mark Rowley spoke of a "heightened concern" among police about the threat to Jewish communities, May said she was aware that "many Jewish people in this country are feeling vulnerable and fearful".

Read: Holocaust memorial posters defaced in Newham

CCTV footage captured in Newham show the moments a Holocaust memorial poster was sprayed with graffiti by a member of the public.

Police are now investigating four incidents of racially motivated graffiti on posters around Stratford after being alerted to the offences though social media.

Police are treating the events as racially aggravated criminal damage.

Newham residents and the mayor of Newham, Sir Robin Wales, expressed their shock and sadness at the events. Resident James Tattle, who reported one of the incidents to Newham Council said he was repulsed.

Anyone with information relating to these crimes is being urged to contact police on the non-emergency number 101.

Police have stepped up security in Jewish areas across London in response to the Paris attacks and increased tensions as the final edition of the French satirical magazine goes on sale across the city.

In Newham, east London, posters advertising a holocaust memorial event were defaced with words including "liars" and "killers", in incidents police are treating as hate crimes.

Senior Correspondent Ronke Philips reports.

Newham Council said a fourth Holocaust memorial poster has been defaced at a location on Balaam Street, Plaistow.

The graffiti has been condemned widely. Sir Robin Wales, Mayor of Newham, described the incidents in east London as "despicable" and vowed to bring the perpetrators to justice.

Posters advertising a Holocaust memorial event have been defaced in Newham, east London.

The posters, advertising an event in Stratford have been covered in graffiti including the words "liars" and "killer".

Police said the incidents are being listed as a "hate crime" and said officers in Newham were investigating.