A heart-wrenching incident happened a couple of days ago in Brazil when a school girl died after hitting her head on a concrete pole while waving her friend goodbye from a bus window, media reports.The girl identified as Fernanda Pacheco Ferraz, (13) was returning home from Professor Carlos Cortes State College when the tragedy took place in Nova Friburgo, near Rio de Janeiro on August 16.People who witnessed the incident said that the girl had put her head out of the window and was leaning out of the left side of the bus to wave at her friends when the driver had to swerve the oncoming traffic. Unfortunately due to this the girls head collided with the concrete pole on the side of the road which resulted in her death.The bus driver immediately stopped the vehicle when the passengers on board alerted him about the accident. Relevant authorities and the bus company management were immediately informed about the incident by the driver.The head injury, however, proved to be fatal for the teenager and she dies before first responders arrived at the scene.A statement was released by the bus company expressing their regret for the unexpected and tragic incident that unfolded.Moreover, the two-day mourning period was also issued by the Rio de Janeiro State Department of Education in a statement over the young girls death.The Secretary of State for Education deeply regrets the accident that occurred with a student from the State College Professor Carlos Cortes, in the Catarcione neighborhood, in Nova Friburgo, on Wednesday (Aug 16), during her journey back home,” the state office said.The young was buried the next day on August 17 at the Trilha do Ceu Cemetery at 4.30 pm. Further investigations on the incident are still underway.