A Tesco supermarket remains closed due to a one-man protest in the roof space.
The man, reportedly a former security guard, has been on the girders above the checkouts in Tesco Extra, Reading, for more than 14 hours.
He is understood to be in a long-running dispute with the supermarket and its security firm, TSS.
The Portman Road store was evacuated on Thursday evening after police received reports concerning the “welfare of a man”.
The man, believed to be the same person seen protesting outside the supermarket for several months, is posting live videos on Facebook.
The most recent one was posted at 05:15.
Banners erected outside the store indicate he has been in dispute with the supermarket and TSS since his employment was terminated.
A Tesco spokeswoman said the company was still establishing the circumstances of the incident but believed the man had not been directly employed by Tesco but was a member of security staff.
Customers reported being told to abandon their shopping when the man began “yelling” from the ceiling of the store, although they could not understand what he was saying.
A Tesco statement said: “We’re aware of an incident at our Reading West Extra store and are assisting police with the matter.”
TSS has been contacted for a response.