Carlos Valdes, head of the National Institute for Legal Medicine, said the deaths were not caused directly by the pepper spray, Colombia Reports said.
Five women and a man died and two other people were injured at the bar, Restrepo, early Sunday. Police said officers who responded to a fight between 4 a.m. and 5 a.m., used the spray.
Investigators say the bar had a legal capacity of 100 but about three times that many were inside at the time of the incident. Doors were locked and there were no signs guiding people to emergency exits.
The Bogota police chief, in a statement, suggested the spray indirectly led to the deaths. Valdes, in his statement, called the deaths "homicides" and said the direct medical cause was "respiratory failure."
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