The site on Dibden Road was destroyed in a fire earlier this year, after facing long-standing issues with vandalism.

Norfolk Police confirmed the incident was being treated as arson and launched an "extensive" search operation to find the perpetrators.

However, the force has now confirmed its investigation has been closed, despite no culprits being identified.

The former shoe factory (Image: Supplied) The factory had remained vacant since Van Dal shoemakers moved out in 2018 and the site had been troubled ever since.

In January a fire tore........

© Norwich Evening News