A Ukrainian military spokesman Andrei Lysenko, during a meeting with reporters, "There are signs that the rebels and Russian forces were preparing to launch an attack," but gave no further explanation.

He noted, however, that the shelling was less severe than the last few days.

He added that six soldiers were wounded during the past 24 hours.

Kiev announced more than a week since the entry of Russian tanks and troops to the east of Ukraine, which is confirmed by NATO, but denied by Moscow.

If the international community fears of a military attack widely considered the international experts in touch with them by the AFP, it is unlikely with winter approaching.

On the other hand, Lysenko announced that the new Russian humanitarian composed of 74 truck convoy arrived Sunday to eastern Ukraine, thus violating "all the demands of the international community about the movement of humanitarian aid."