In a heart-aching incident, it has been reported that as many as seven puppies have died, which were loaded in the cargo section of an American Airlines.

The broiling heat wave is being pointed as the reason for the tragic death of the seven pups.

As per the airlines officials, in the cargo section of the plane, about 15 puppies were loaded. It was pointed that the temperature at the airport at Tulsa was soaring at 85 degrees. Further, it was forecasted that the temperatures would reach at about 100 degrees.

Not acting responsibly, the staff ignored the heat conditions and also did not take into account that the temperatures are bound to be even hotter in the cargo section.

The details of the flight also reveal that the American flight 851 had departed from Tulsa about 55 minutes after its scheduled time.

Further, the flight arrived in Chicago about 30 minutes late.

The industry people feel that by loading the puppies in the cargo flight despite the broiling heat wave, the airline staff has violated the policies, which ensure that the pets travel safely.

Commenting on the brutal incident, American Spokeswoman Mary Frances Fagan said in an e-mail, "Sadly, some animals died and we are trying to find out what exactly happened and when and under what conditions these animals expired".

However, as per the media, Ms. Fagan further denied to comment on the violation of the policy.