Bulgarian PM Boyko Borisov said at the conference entitled “Energy Security and Energy Infrastructure in South East Europe” which takes place in Sofia.
Noting the importance of joining of gas transportation systems of Bulgaria, Romania, Greece and Serbia said that there are a number of problems that need to be solved.
Touching upon the South Stream gas pipeline project frozen by Russia, Boyko Borisov said so far Bulgaria has not received any written documents about the closing of the project.
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