The residents were taken to hospital in serious and critical conditions after ingesting an unknown substance, which had caused them to collapse.
“An inquiry was opened and the victims are recovering. They are at hospital and are expected to be discharged.
"The victims claimed they were given a mix of different alcohol types to drink. Doctors also confirmed that it was not poison but alcohol,” the police source said.
Police spokesperson Andrè Traut said there were “no new developments to report”.