Passengers on a U.S. commercial flight lost consciousness due to high temperatures, which caused the air conditioning to fail on board the aircraft. Delta Airlines, the owner of the plane, apologized to the passengers and announced an investigation into the incident after one passenger reported that the crew did not attend to them. The pilot attempted to calm the passengers by apologizing and informing them that the situation they were facing was beyond the crew's control, which was trying its best to reduce the temperature inside the plane after the air conditioning breakdown. The aircraft had reportedly been stuck on the tarmac at Harry Reid International Airport in Las Vegas, U.S. for hours.