A man has been spotted on CCTV entering a Blackpool demolition site, seriously putting his safety at risk, despite the presence of security fencing to alert people to the potential danger.

Blackpool Police and council have urged people to heed security fencing and not trespass on sites after the man was seen searching for scrap metals directly in front of half-demolished three-storey buildings, the Gazette reports.

The site, between Tower Street and Coronation Street in central Blackpool, has been marked as part of a future housing development.

"Clearly it's dangerous on the building site and it's not open to the public. It is fenced off and I have an officer throughout the night checking it," inspector Jonathan Smith, of Blackpool Police, told the newspaper.

Peter Callow, Blackpool Council leader, added that areas such as these were fenced off for a reason and that it was foolish of people to consider entering them.

"It's stupid behaviour. I certainly would warn people to keep away from these sites. We don't want any injuries and there's probably not much [of] worth there anyway. These buildings are very old and unsafe, it's not worth it," he told the newspaper.

Last month, businesses in Derry/Londonderry, Northern Ireland, were urged to ensure their security fencing was secure following a spate of oil thefts.ADNFCR-3337-ID-800222399-ADNFCR