Police in Cambridgeshire are investigating suspected post-referendum racism after abusive notes were allegedly posted through letterboxes of Polish people.
Some Poles living in Huntingdon apparently received laminated cards reading 'Leave the EU - no more Polish Vermin.'
Inspector Nick Percival said the police were "aware" of the incident and were investigating.
He urged anyone with information about the source of the notes to contact the police.
The area voted by 54 per cent to 46 in favour of quitting the European Union.
Business leaders across our region are calling for reassurance following Brexit. Concern is growing at losing EU money.
The Bishop of Norwich has called for unity and calm in the wake of the referendum vote to leave the European Union.
Wisbech in Cambridgeshire has been described as one of Britain's most segregated towns. We returned there to gauge reaction to the vote.