Police are on high alert for a spike in hate crime and racial abuse following the result of last weeks EU referendum.

Sadiq Khan and David Cameron have both spoken out against the increase in hate crime after the UK voted to leave the European Union.

Mayor of London Mr Khan called on Londoners to "pull together and rally behind this great city" and stressed it was "crucial" not to "demonise" the 1.5 million people in London who voted for Brexit.

He said: "While I and millions of others disagreed with their decision, they took it for a variety of reasons and this shouldn't be used to accuse them of being xenophobic or racist."

Scotland Yard is investigating a hate crime incident after offensive graffiti was found on the front of a Polish Social and Cultural Association in west London.

High visibility foot patrols have been stepped up in the area.

Polish ambassador to Britain Witold Sobkow said: "We are shocked and deeply concerned by the recent incidents of xenophobic abuse directed against the Polish community and other UK residents of migrant heritage."

The National Police Chiefs Council said there were 85 reports made to True Vision, an online hate crime reporting site, between Thursday and Sunday - a rise of 57% compared to the 54 made on the corresponding four days four weeks ago.