Thomas Grove, Thomson Reuters

Kyiv gives 48-hour ultimatum to pro-Russian protesters in eastern Ukraine

US Secretary of State John Kerry accused Russian agents and special forces of stirring up separatist unrest in eastern Ukraine.

Ukraine says it won’t charge pro-Russian separatists if they surrender occupied buildings

Shells hit central Donetsk as controversial Russian aid convoy heads toward border

Skirmishes continue in eastern Ukraine but no signs of a widening conflict

Pro-Russian rebels name leader in Ukraine as crisis worsens