Though the natural disaster of magnitude 7.2 is over, but the fear of aftershocks after such a powerful quake had compelled the people to sleep in the open and not in their houses.
A magnitude-7.2 natural disaster shook south and central Mexico on Friday, causing people to flee swaying buildings and office towers in the country's capital.
Interior Minister Alfonso Navarrete Prida and Oaxaca Gov. Alejandro Murat, who was also aboard the helicopter, survived the crash unharmed.
Recovery efforts are still being carried out in Oaxaca as well as Mexico City after strong earthquakes in September killed several hundred people and toppled buildings.
As a powerful quake struck Mexico, rescue emergency services were deployed immediately but unfortunately, one of the rescue helicopters crashed leaving 14 people dead and 21 others injured on the ground.
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President Enrique Pena Nieto said via Twitter that both officials and crew were fine, but some people on the ground had been killed or injured. "What do I do?"
The Oaxaca state prosecutor's office said in a statement revealed that the crash resulted in the deaths of five women, four men and three children at the scene while an injured victim died later at the hospital. This is the second powerful quake that has struck Mexico in less than six months with two powerful earthquakes in September which left more than 400 people dead.
The National Seismology Service said the epicentre was about 145km from the Pacific coast surfer resort Puerto Escondido and the sustained shaking gave way to 194 aftershocks.
Earlier reports said the chopper crashed on top of two vans in an open field.