PurposeThe study focuses on the negative implications that an organizational crisis can have for individual employees. Specifically, it considers job-related uncertainty, negative emotions (anxiety and frustration) and job disengagement. Through the lens of the social exchange theory, it is argued that internal crisis communication needs to provide sufficient socioemotional resources to their employees in order to mitigate these negative outcomes. In particular, the study argues for internal crisis communication that fosters organizational transparency and organizational support to achieve these mitigating effects.Design/methodology/approachAn online survey among employees in Austria was administered one year after the outbreak of the COVID-19 pandemic – this specific crisis context particularly evoked job-related uncertainty and negative emotions which are considered relevant drivers of job disengagement. The hypotheses were tested using structural equation modeling based on a sample of N = 410.FindingsResults show that employees' perceptions of job-related uncertainty are strongly linked to job-related anxiety and frustration; job-related frustration, in turn, strongly influences job disengagement. Overall, employees' perceptions of organizational transparency and organizational support contribute both to prevent the risk of job disengagement; however, the processes how these effects evolve differ. Whereas organizational transparency works on the cognitive level via a reduction of employees' perceptions of uncertainty, organizational support shows its effect on the emotional level through a reduction of job frustration.Originality/valueThe study contributes to the scarce research on how internal crisis communication can address employees' uncertainty, negative emotions and job disengagement during a crisis. Moreover, despite the lack of organizational responsibility for creating the crisis, the study emphasizes organizational accountability to respond to the needs of its employees to mitigate negative effects.