SEATTLE - Two former Microsoft workers are claiming their work reviewing abuse, child pornography and other graphic material flagged for removal caused them post-traumatic stress disorder.

The Seattle Times says Henry Soto and Greg Blauert have sued Microsoft Corp. claiming the technology company was negligent and violated prohibitions of discrimination based on disabilities.

Soto and Blauert worked to review and remove disturbing images, videos and accounts that depicted graphic violence and abuse.

They say they were not given proper mental-health support to cope with the impact of reviewing material they called traumatic.

Microsoft disagreed with the plaintiffs' claims. In a statement Thursday the company said the health and safety of employees who handle such material is a priority and that it works to ensure such workers have the resources and support they need.