GENEVA, Dec 8, 2024 (BSS/AFP) - More than two dozen peopled suffered from 
carbon monoxide poisoning during a dinner in a dome tent at a campsite in 
central Switzerland, police said on Sunday.

"Late on Saturday evening, a number of people in Giswil suffered from carbon 
monoxide poisoning and had to be hospitalised," regional police in Obwalden 
canton said.

The incident occurred during a large private dinner party in a dome tent at 
the Giswil campsite.

At around 10:30 pm (2130 GMT), a number of the 35 people in attendance 
suddenly lost consciousness and others complained they felt unwell, Obwalden 
police said, adding that the group had immediately gone out into the fresh 
air.

"According to initial investigations, there was an excessive accumulation of 
carbon monoxide in the tent over the course of the evening, causing a number 
of people to suffer from carbon monoxide poisoning," the police said.

"Twenty-six people were hurt in the incident, with 17 people having to be 
hospitalised."

First responders and rescue workers, along with two rescue helicopters, were 
deployed to the scene.

Police said they were investigating what caused the increased accumulation of 
gas in the tent, in cooperation with the Zurich Forensic Institute.