This is so sad. I had to double check this wasn't the same class 12 girl from India I reported on June 23 who also collapsed 
"New Delhi: In a shocking incident, a class 12 student died of cardiac arrest in her school in Gujarat’s Surat, authorities said.
"The 17-year-old, according to news reports, was climbing the school stairs during recess when she suddenly became breathless and unconscious. School authorities rushed her to a nearby hospital but was pronounced dead by the doctors.
"The school principal said the girl had tried to hold the railing of the stairs when she started feeling uneasy and was sweating but could not gather the strength to do so and fell.
“'We rushed her to the nearest hospital in the school car. The doctor present there told us that she had died of sudden cardiac arrest.'