Ukraine's embattled prime minister announced Sunday that he is resigning, opening the way for the formation of a new government to end a drawn-out political crisis.

Two human-rights groups have teamed up to oppose a plan by the outgoing Conservative government to allow the sale of so-called prohibited weapons to Ukraine, including automatic assault rifles and armoured vehicles.

Ukrainian Prime Minister Arseniy Yatsenyuk delivered a warning Tuesday to private bond-holders that the government "will do everything" in order to ease its massive debt burden.

Canada has reached a trade agreement with Ukraine that Prime Minister Stephen Harper says will help Ukraine build its economy and establish greater ties with the West.

Ukraine's prime minister arrives in Ottawa today for what's likely to be the last visit by a foreign government leader ahead of this fall's federal election.

Canada has joined its allies in dusting off a Cold War playbook to push back against Russian influence in Ukraine, but the advance of democratic ideals is fraught with contradictions and qualifications.

The prime minister of Ukraine will be in Ottawa this week for talks with the Harper government.

Debaltseve has been without power, water and gas for at least 10 days, prompting many to flee from an artillery duel between government and Russian-backed separatist forces.

With more than one-third of the votes counted, two allied pro-European parties in Ukraine that ran on a platform to enact tough reforms took a joint lead Monday in a parliamentary election.

Ukraine's parliament has voted not to accept the resignation of Prime Minister Arseniy Yatsenyuk.