This ends our live-blogging for April 3. Be sure to check back tomorrow for our continuing coverage.
Here is today's map of the military situation in eastern Ukraine, according to te National Security and Defense Council:
Three Ukrainian soldiers killed by mine:
Three Ukrainian servicemen have been killed and two wounded in a land-mine explosion in separatist eastern territories.
Ukrainian military spokesman Andriy Lysenko said on April 4 that the casualties happened near the town of Avdiyivka, referring to a government-held town north of rebel-held Donetsk.
The announcement came on International Mine Awareness Day.
The UN Children's Fund says unexploded mines and ammunition pose a special threat to children in eastern Ukraine, where government forces have fought pro-Russian separatists.