The tragic incident involving the deaths of five adolescents in Manlleu has been determined to be accidental based on initial findings from the Mossos d'Esquadra, who conducted an investigation at the scene. According to the report delivered to the relevant court, a mattress caught fire due to contact with a burning cigarette butt, resulting in the release of toxic smoke that intoxicated and suffocated the young victims, who were situated in the storage area on the rooftop of the building.

The investigation indicated that the teenagers did not suffer any burns or show signs of external violence, and there was no indication of foul play. Officers noted that all doors in the area where the adolescents were located were open and there were no explosive substances involved, which suggests the absence of criminal activity. The small-scale fire created a large amount of black toxic smoke that spread through the vicinity, posing a significant danger even though the flames themselves were minimal.

This incident highlights the potential hazards associated with careless smoking and the rapid spread of toxic smoke in enclosed spaces. The Mossos d'Esquadra's assessment not only brings some closure to the families of the victims but also underlines the importance of fire safety and awareness in preventing such tragedies in the future.