Destroyed vehicles littered the road near a checkpoint in the southern Ukrainian city of Mariupol after artillery shells struck a checkpoint late on September 6. The shelling claimed the first civilian casualty since the start of a cease-fire on September 5. (Video by RFE/RL's Ukrainian Service)
Amnesty International Secretary-General Salil Shetty speaking on September 7 in Kyiv:
"What we have [are] new satellite images which we've acquired, and it's quite clear that there's direct and active influence of Russia. Russia can't deny not being a party to the conflict anymore. Very systematic, well-organized mobile artillery and armored units in place. There's no way the separatist forces could have organized that themselves."
"On top of that, we also have eyewitness accounts of movement of Russian tanks across the border. So, I think really that it's not deniable anymore. As far as we are concerned, it's an international conflict."
"This is our main call on the Ukrainian government: That obviously, particularly when they recapture some territory, it's really important for them not to behave in the same way that separatist forces with Russian backing are behaving."
Incredible footage of pro-Russian separatists firing a volley of Grad missiles at Ukrainian Army positions: