Greece is facing the risk of a fiscal gap in the second half of 2014 and of an inability to service its public debt, meaning a funding gap, according to a Parliament's Budget Office report released on Wednesday.

The Greek economy will grow by 0.6% in 2014 after a 4.2% recession this year, the International Monetary Fund (IMF) said on Tuesday.

Troika representatives have temporary halted their talks with Greek officials, saying the negotiations on the next amount to be released for the bailout package are set to resume soon.