There has been speculation about the cause of deaths, ranging from a stampede to teargas poisoning and carbon monoxide asphyxiation caused by generator fumes.
While ruling out several possibilities, police and health officials have remained tight-lipped after sending samples to a Cape Town laboratory for additional testing.
The province’s liquor industry and enforcement by the liquor board came into sharp focus after it emerged all 21 of those who died were under the legal drinking age, with the eldest at 17 and the youngest 13.
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