A man remains in a critical condition in hospital.
An investigation is underway following the unexplained deaths of two women and the hospitalisation of two men in Tullamore, Offaly.
Gardaí were called to a hostel in Tullamore on Sunday where they discovered a 44-year-old woman in an unresponsive state.
She was pronounced dead at the scene a short time later and her body has been removed to Tullamore Hospital for a post-mortem examination.
On Monday morning, emergency services were called to treat a woman aged in her late teens at the same hostel.
She was pronounced dead at the scene a short time later and her body has since been removed to the mortuary at Tullamore Hospital where a post-mortem examination will be carried out.
While at the hostel a 23-year-old man became unresponsive and was removed by ambulance to Tullamore Hospital where his condition is said to be critical.
A 32-year-old man was also taken to hospital for treatment where his condition is not thought to be life threatening.
The deaths are not thought to be Covid-19 related and Gardaí are awaiting post-mortem and toxicology results to determine the course of their enquiries.
The local Coroner has been notified.
Gardaí are liaising with the HSE and CADS, a local community alcohol and drugs support group, in relation to the case.
