German Economy Minister Sigmar Gabriel warned the Greek government that Greece could only get further funds if it carried out reforms in a German newspaper interview published on Sunday. Greece's cash reserves are dwindling and negotiations between Prime Minister Alexis Tsipras's new left-led government and its lenders over a cash-for-reforms deal have been fraught with delays for months. Asked if Greece could still be saved, Gabriel told Bild am Sonntag that this was up to Athens and said a referendum on the necessary reforms could perhaps speed up decisions. On Monday German Finance Minister Wolfgang Schaeuble suggested Greece might need a referendum to approve painful economic reforms on which its creditors are insisting, but Athens said it had no such plan for now.