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The Houston Police Department found the 35-year-old woman in the airport's breakroom after receiving a suspicious person call at about 3:20 a.m.
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Authorities believe the woman had suffered a "severe laceration to her arm" while she was away from work.
The woman was reportedly transported to the hospital and died several hours later.
HPD said that based on a preliminary investigation, no foul play is suspected.
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An autopsy will determine the woman's cause of death.
Anyone with information on this case is urged to contact the HPD Homicide Division at 713-308-3600.