Debris is said to have come from flying objects. Two people are reported to have been taken to safety.
The incident is the latest in a long line of incidents in the region since the start of the conflict in Ukraine in March 2014. The Russian government has been accused of sending troops to the region in an attempt to protect its citizens from attacks from the West. The Ukrainian government has denied this, saying it is only trying to protect the lives of its own citizens from the effects of the war in Ukraine.