Inclusion Criteria:  Meet criteria for PTSD If taking psychotropic medication, then the dose must be stable for at least 4 weeks prior to study entry ≥ 18 years Fluent in Swedish Signed informed consent  Exclusion Criteria:  Other serious comorbidity as primary concern (for example ongoing substance dependence, untreated bipolar disorder, psychotic symptoms, severe depression, high suicidal risk) Other ongoing trauma-focused psychological treatment Ongoing trauma-related threat (e.g. living with a violent spouse)