Russians broke ceasefire within 25 minutes.

"25 minutes after the announcement of a ceasefire in the conflict on the Eastern Ukraine separatists launch mortars on the positions of the Ukrainian government forces in the village Zolote in the Luhansk region - announced the anti-terrorist operation headquarters in Kiev.
ATO reported also that just before midnight (23.41 local time) terrorists opened fire in the direction of the Russian Federation, what is a provocation",515221,s.htm

Ceasefire broken again at 2AM - 2 hours after ceasefire on a city in Luhansk oblast.