All eight on board downed plane were Ukrainian , Defense Ministry spokesman says . Four escaped after plane hit ; two taken hostage , official says . The Ukrainian military has been battling pro-Russian separatists in the area where the Antonov-26 aircraft went down , officials said . - Ukraine has said it will not allow Russian forces to enter its territory in eastern Ukraine.
All eight on board downed plane were Ukrainian , Defense Ministry spokesman says . Four escaped after plane hit ; two taken hostage , official says . - Ukraine has said it will not allow Russian forces to enter its territory in eastern Ukraine.