Care for NHS mental health patients in Norfolk and Suffolk is "significantly worse" than most other areas of the country, according to a new report.
Regulator the Care Quality Commission is writing to four mental health trusts after failings were identified by a survey of 13,000 patients.
Across the country the survey revealed that people's experiences of being cared for in the community for mental health problems, ranging from depression to psychosis, have not improved since last year.
One in three reported that their overall experience of care was poor while a quarter who had tried to get help during a crisis said they could not get assistance.
The CQC said the Norfolk and Suffolk NHS Foundation Trust along with three other trusts in London, Warwickshire and the Isle of Wight must improve.
The CQC's deputy chief inspector of hospitals and the regulator's lead for
mental health, Paul Lelliott, has written to the trusts outlining the action
they must take to improve.<
Dr Lelliott said: "There are around 1.7 million people across the country who
are currently being funded by the NHS, for treatment for a mental health
condition in the community funded by the NHS.<