IMF says Greece debt 'explosive' in long term

Debt burden of Greece will require 'significant debt relief' from European institutions

Greece's government debt remains "highly unsustainable," and will be "explosive" in the longer run, requiring a more credible debt relief plan from Europe, the International Monetary Fund said in a report.

Addressing the debt burden of the beleaguered nation will require "significant debt relief" from European institutions, the IMF said in its annual report on the Greek economy, which includes a debt sustainability analysis.

The IMF board is due to discuss the report February 6.