Police in Huntingdon are looking into reports that laminated signs reading "Leave the EU/No more Polish vermin" were distributed in Huntingdon. There was a translation in Polish on the back of the cards. Four of the cards were discovered outside St Peter's School in Huntingdon on Friday, 24 June.
The incident was reported by the mother of an 11-year-old student who found them. The boy, who is Polish, said he thought the cards were racist, according to Cambridge News, adding: "I felt really sad."
A local Cambridge woman posted a message on Facebook saying that her husband had found one of the cards down an alley, next to where Polish people were living.
Far Right Watch reported that incidents of race hate speech and malicious communications in person and on the internet has increased by 540% since the UK voted to leave the EU.
In Hammersmith, west London, police are investigating graffiti painted on the Polish Cultural Centre as racially motivated criminal damage. A Metropolitan Police spokesman said: "Shortly before 11am police were informed of an incident of alleged racially-motivated criminal damage to a building in King Street, W6.
"Officers from Hammersmith and Fulham borough attended and enquiries are ongoing."
Greg Hands, Tory MP for Chelsea & Fulham tweeted "Am hearing that the Polish Centre in Hammersmith has been smeared with 'Go Home'. This is an unspeakable crime and is indescribably [sic] awful."
According to the @PostRefRacism Twitter feed, which collects incidents of racist events, a father and son were attacked in a possible racist attack.
Baroness Warsi has warned of post-Brexit racism after a "xenophobic and divisive" campaign. The former Tory chairwoman blamed the Leave campaign of stirring up prejudice and that race hate crime organisations are reporting some "disturbingly early results".
Speaking to Sky News, the former Minister of State for Faith and Communities said she would like Leave campaigners to "come out and say that the campaigning was divisive and was xenophobic and give a commitment that future campaigning and the way that they intend to run this country will be united, will make people from all backgrounds feel like they belong".
She added: "I've spent most of the weekend talking to organisations, individuals and activists who work in the area of race hate crime, who monitor hate crime, and they have shown some really disturbing early results from people being stopped in the street and saying look, we voted Leave, it's time for you to leave.
"And they are saying this to individuals and families who have been here for three, four, five generations. The atmosphere on the street is not good."