Passengers aboard a flight from Las Vegas to Atlanta passed out and needed to be revived with oxygen on Monday, as Phoenix looks set to break another heat record for the 19th consecutive day.

The travelers were on board the Delta Air Lines flight at Harry Reid International Airport when they had to be taken off due to the intense heat.

Also on the flight was Fox News field producer Kirsta Garvin, who reported hearing the pilot announce they would be returning to the gate after multiple emergencies.

The situation is said to have worsened and flight attendants were seen running up and down the aisles with oxygen tanks as passengers passed out.

According to Garvin, at least five people had to be taken from the flight due to the heat on board the aircraft.

Garvin said that the decision was then made to take everyone off due to the volume of sick people, and to try to cool the plane down.

Taking to Twitter, she said: ‘What an INSANE experience. First we were delayed because you did not have a flight attendant. ‘Then we finally board and sit for almost 3 hours on a hot plane in 111 degree weather.

‘Now we are heading back to the gate cause people are passing out. We are now being told you can get off but there isn’t another flight out to ATL for days.

‘This is actually nuts. Paramedics are on now. I’ve seen a total of three people wheeled out so far. Oxygen tanks are being pulled out.

‘They said to press your call button if you need medical assistance. Babies are screaming crying. They’re handing out sandwiches to the diabetics. I am just shook.’

She later updated her Twitter thread advising that the crew had also fallen ill from the temperatures. The National Weather Service said that the temperature at the airport fluctuated between 111 and 115 degrees on Monday.

In a statement, Delta Airlines said that they had been investigating the situation.

A spokesperson said: ‘We apologize for the experience our customers had on flight 555 from Las Vegas to Atlanta on July 17, which ultimately resulted in a flight cancellation.

‘Delta teams are looking into the circumstances that led to uncomfortable temperatures inside the cabin and we appreciate the efforts of our people and first responders at Harry Reid International.’

It comes as the city of Phoenix is set to smash a record today for the 19th straight day the temperature has soared to 110 degrees.

The nights have offered little relief from the brutal heat.

Phoenix’s overnight low only dropped to 94 F (34.4 C) on Tuesday, the ninth straight day of temperatures not falling below 90 F (32.2 C), another record.

National Weather Service meteorologist Matt Salerno said: ‘It’s pretty miserable when you don’t have any recovery overnight’.

The thermometer reached 100 F (37.8 C) before 9 a.m. for the sixth straight day on Tuesday.