High-tech security has been installed around a building in Peterborough following a spate of deliberate fires.
Neighbourhood officers said they found clear evidence of smoke damage when they searched the Old Mill in Fletton Quays.
Police have since been in contact with the building owner who has taken extra measures to prevent anti-social behaviour.
This includes installing security towers around the building which capture images of anyone who enters.
"Tackling anti-social behaviour in Fletton Quays is a priority for the local neighbourhood team who will continue these patrols," said police.
"If you have any ASB concerns you would like us to be aware of, you can report to us via https://orlo.uk/VMzup."
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