Police have admitted they may never know who was responsible for the infamous ‘Happy Brexit Day’ poster which was plastered across the floors of a city tower block.

Norwich Evening News: Winchester Tower in Norwich, where a racist poster was put up on Brexit Day. Picture: ArchantWinchester Tower in Norwich, where a racist poster was put up on Brexit Day. Picture: Archant (Image: Archant)

On January 31, the day Britain left the European Union, several posters were put up across the floors of Winchester Tower in Norwich, under the header of ‘Happy Brexit Day’.The posters caused uproar by insisting foreign residents of the tower only speak English from now on, and that European languages “would not be tolerated”.

It sparked a defiant response from city-dwellers which saw protests, competing posters and the side of the building ‘love-bombed’ with messages of support and tolerance.

It also saw a police investigation launched, with Norfolk Constabulary treating the incident as a hate crime.

However, after officers have now closed the case without a culprit being found, following months of enquiries.

Norwich Evening News: Dozens of people turned up to Winchester Tower in Norwich on Sunday to stand up against racism. Picture: Victoria PertusaDozens of people turned up to Winchester Tower in Norwich on Sunday to stand up against racism. Picture: Victoria Pertusa (Image: Archant)

A spokesman for the constabulary said: “A number of enquiries have been carried out including house to house, extensive CCTV checks and forensics. At this stage we have not been able to identify the suspect.

“The investigation has been closed, however, if any new information should come to light, this will be reviewed accordingly.”

Poppy Rose, one of the tenants of the tower who raised the alarm following the incident, said she wasn’t surprised the culprit had not been traced.

She said: “Time moved on and the police had bigger fish to fry - to be honest I think it did much more good than bad in the end.”

Emma Corlett, Labour county councillor for Town Close, where the tower is, said: “The hateful bigot who circulated the note may not have to face justice, but they could not escape our fantastic community response to their vile actions.

“Our community said loud and clear we will not accept such views and will stand together against hate.

“The culprit was shown they are a tiny, isolated minority. Town Close is a friendly and welcoming place to live, with many of us working hard day in and day out to keep it that way.”

Anybody who has new information should contact Norfolk Constabulary on 101 quoting crime reference 36/7964/20 or by anonymously contacting Crimestoppers on 0800 500 111.