664 people are on trolleys in hospitals across the country today.
According to the INMO, the worst affected is Cork University Hospital where 63 people are waiting for beds.
It's followed by University Hospital Galway where 50 patients are on trolleys.
There are 27 patients waiting on trolleys today at Sligo University Hospital.
There are 15 patients waiting on trolleys at Mayo University Hospital and 4 at Portiuncula Hospital, Ballinasloe.