In the 1990s and the 2000s coal mine collapses took place in Donetsk and the region , taking the lives of hundreds ; those included the 2008 Ukraine coal mine collapse , the 2007 Zasyadko mine disaster , and the 2015 Zasyadko mine disaster . Ukraine has had a series of mining accidents since the collapse of the Soviet Union in 1991 , and one reason being given is the linking of miners ' pay to production , which serves as an incentive to ignore safety procedures that would slow production
2015 Zasyadko mine disaster
2015 Zasyadko mine disaster
Donetsk