Why air buses crash unexpectedly now and then?

By sri
@gamyam (530)
Hyderabad, India
November 2, 2015 1:10am CST
Recently a Russian plane (a321-23) carrying 224 people crashed in mountains. Was it crashed because of an attack or not? What is the actual reason for it’s crash?
1 response
alina
@swissheart (6482)
• Romania
2 Nov 15
a terrorist organisation claimed to be responsable of the crash