Qatar has failed to explain up to 70% of migrant worker deaths in past 10 years – Amnesty

World Cup host has not properly investigated fatalities, rights group says, citing concerns over heat stress and safety

World Cup host Qatar has failed to investigate the deaths of thousands of migrant workers in the past decade, according to a new report by Amnesty International.

The human rights organisation said the majority of migrant worker deaths in Qatar are attributed to natural causes", cardiac or respiratory failure; classifications which are meaningless" without the underlying cause of death explained, according to one expert cited.