About 15 squatters have taken up residence in a warehouse in a Watford industrial estate.
Police attended the Parker Hannifin premises, in Greycaine Road, at 11am today following reports the group had moved in overnight.
Officers did not evict the squatters, who have squatters’ rights, but are now in contact with the building’s owner.
Watford Safer Neighbourhood Team, Inspector Nick Lillitou, said: "We are currently liaising with the owner of the building in question and are looking into our legal options. We will continue to monitor the local area as part of our regular patrols."