A bus running on compressed natural gas was involved in a fatal crash in Calgary, killing three people. The vehicle is part of a fleet of about 1,000 CNG buses operating in Canada. An expert in low-carbon transportation stated the model remains “extremely safe” despite the incident. The crash occurred on a local road, prompting an investigation into safety protocols. Authorities are reviewing the circumstances of the collision. The bus was traveling under normal conditions when the accident happened. No immediate fault has been assigned. The incident has raised questions about the safety of CNG vehicles in everyday use. The expert emphasized that the crash does not reflect the overall safety record of the bus model. The fleet is used for public transit across multiple Canadian cities. The crash is under police investigation. No further details have been released. The event highlights ongoing discussions about alternative fuel vehicles and their safety.