The Cuban government has confirmed that 11 people have died after drinking industrial strength methanol sold to them as rum.
59 are still in hospital, two in a serious condition.
A preliminary investigation suggests the methanol, which is commonly used as anti-freeze, was stolen from a government warehouse by two workers.
It was sold as black market alcohol by a local woman in the Havana neighbourhood of La Lisa.
Most of those who died were in their 40s and 50s and lived locally.
A neighbour explained why they had bought the alcohol, saying: “The other shops are far from here, and this alcohol is cheaper to buy. That’s why they came here”
Three people have been arrested.