The Greek economy remained deep into deflation in April with the consumer price index at -2.1 pct, unchanged from March, down down from -1.3 pct in April last year, Hellenic Statistical Authority said on Friday.

Six persons were injured, five of them seriously, at a fire that broke out on Friday morning at Hellenic Petroleum (ELPE) refineries in Aspropyrgos.

Greece seeks to become a pluralistic energy hub in the region, with a multi-level and independent energy policy based exclusively on national interests, cooperation and energy security in the region and Europe, Productive Reconstruction, Environment and Energy Minister Panagiotis Lafazanis said on Friday after a meeting with Amos Hochstein, special envoy and coordinator for international energy relations of the US administration.

"There is no technical issue on achieving a fair and mutually beneficial agreement with the partners. There is only an issue of political will," Prime Minister Alexis Tsipras on Friday said during the Hour of Prime Minister in Parliament.