The Honolulu Police Department is investigating how a 30-year-old man died while in custody.
The suspect, who was arrested on Monday, was found unconscious in his cell Tuesday morning, police said.
Firefighters and paramedics tried to revive the man, but he later died.
His identity has not been released.
Police have opened an unattended death investigation.
Copyright 2016 Hawaii News Now. All rights reserved.
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