Fifteen people were transported on Sunday to various hospitals in the Lisbon area due to carbon monoxide poisoning at a residence in Tapada das Mercês, in Sintra, said the National Civil Protection Command.
The same source told Lusa that the atmospheric air saturation was measured and a high level of carbon monoxide was detected in the house.
Most of the people, seven, were transported to Fernando da Fonseca Hospital in Amadora, while the rest were taken to Cascais, Santa Maria and São Francisco Xavier hospitals in Lisbon.
The alert was given “just before 9pm” on Sunday, he said.