A&E warnings as Wrexham Maelor hospital 'log-jammed'
8 January 2014 Last updated at 19:25 GMT
Wrexham Maelor hospital is "log-jammed" and others in north Wales are in a similar situation, BBC Wales has found.
An email sent from the hospital to Betsi Cadwaladr University Health Board staff urges "any actions necessary to facilitate discharge" of patients.
The health board said it was managing the situation and no planned surgery had been cancelled.
It came as Cardiff health chiefs became the latest in Wales to warn people to only use A&E units in emergencies.
There is similar advice for A&E at Morriston in Swansea and the Princess of Wales hospital, Bridgend.
Steffan Messenger reports.