Top eurozone officials on Friday kept up the pressure on Greece to deliver new bailout proposals so as to avoid bankruptcy, as Prime Minister Alexis Tsipras collected some pledges of help during a visit to Russia, dpa reported. Fears are rife that Greece is about to run out of money, after it has struggled for months to agree with its creditors on economic reforms that would unlock 7.2 billion euros (8.1 billion dollars) in bailout aid for Athens. Time is now running out as the European part of the Greek bailout is expiring on June 30, on the same day when the country is supposed to repay 1.6 billion euros to the International Monetary Fund (IMF). "We are close to the point where the Greek government will have to choose between accepting what I believe is a good offer of continued support or to head towards default," EU President Donald Tusk warned in a video message released Friday.