LONDON -- A wave of reported racist incidents targeting European migrants across the country has followed the Brexit vote.

London Mayor Sadiq Khan has urged residents to "stand guard" against hate crime. 

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Sarah Childs has compiled on Facebook an album with racist incidents that people have shared on social media after Britain voted to leave the European Union. 

The album quickly became a community group under the name "Worrying Signs." 

"We want this group to be a safe space where you can share information and post pictures and screen grabs of any worrying signs or incidents of racism / xenophobia you've come across since the EU referendum results," the group said in a post. 

Racist graffiti with the words "Go Home" have been smeared on a Polish community building in Hammersmith. The Polish embassy said it was "shocked and deeply concerned" about reports of xenophobic abuse: 

A video filmed in Hackney after the referendum shows a man arguing with someone in a car before telling him "Go back to your country." 

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An Italian person was reportedly assaulted for asking how they voted in the EU referendum:

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People started tweeting episodes of racism under the trend #postbrexitracism and #postrefracism:

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In Huntington, Cambridgeshire, there have been reports of signs saying “Leave the EU, no more Polish vermin” posted through the letter boxes of Polish families on the day of the referendum results. 

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