The occupiers are preparing to block the personnel at the ZNPP, – Energoatom

Given the shortage of nuclear workers and the fear of a counteroffensive by the Armed Forces, the Russians plan to take NPP personnel hostage. According to the department, many provisions, including food and water, have already been brought to the station.
The Russians probably won't let them go after another change of nuclear engineers, forcibly closing the Zaporizhzhia NPP. They resorted to this at the beginning of the full-scale invasion when they occupied the Chornobyl nuclear power plant. Then people were held hostage until liberation.