The shaky cease-fire in Ukraine may be falling completely apart. Reuters is reporting that:
A column of 32 tanks, 16 howitzer artillery systems and trucks carrying ammunition and fighters has crossed into eastern Ukraine from Russia, the Kiev military said on Friday.
"The deployment continues of military equipment and Russian mercenaries to the front lines," spokesman Andriy Lysenko said in a televised briefing referring to Thursday's cross-border incursion.
The report of a new Russian movement of armor across the border follows a charge on Thursday by pro-Russian rebels in eastern Ukraine that Kiev government forces had launched a new offensive - which Kiev immediately denied.
Some 4,000 people have been killed in the fighting. The cease fire has been in effect for two months but:
... has looked particularly fragile this week, with separatists and the central government accusing each other of violations after separatist leaders held elections in self-proclaimed 'people's republics' last Sunday.