Seventeen people, between the age of 20 and 40, have been reported dead from an apparent gas leak after a party at a youth hostel in the Spanish town of Todolella, Castellon district, Spanish media reported. This is the gravest case of this kind in the country for 15 years, officials from the local civil defense said. The group has hired the hostel to celebrate a birthday party and spend the weekend. Apparently, they have missed to close the vent of one of gas tubes and died of suffocating from the deadly monoxide gas during the night.