Police have appealed for the 15 power station protestors to come down and stop wasting public money in an operation estimated to cost £20,000 per day.
Nottinghamshire's Assistant Chief Constable Paul Broadbent said they have made their point and there are other ways of protesting.
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Stella Manzie will take over after running the council until a permanent chief executive is found.
It comes after months of protests following United Lincolnshire Hospitals NHS Trust's (ULHT) decision to close the unit overnight.
The attacker made a swipe at her handbag, causing the victim to lose balance and fall to the floor.