"The European Central Bank and (ECB President Mario) Draghi hold control of liquidity. So there will be all the moves, whatever is needed - he has said that himself - so that the smooth course of things is not upset," Dragasakis told Greece's Mega TV.

On Saturday, Finnish central bank governor Erkki Liikanen, a member of the ECB's policymaking Governing Council, said the liquidity support could dry up if Greece persists with its plan of pulling the plug on its international bailout deal.

Dragasakis also said the change of management announced earlier on Sunday at Greek lender Eurobank, in which Greece's bank bailout fund holds a 35 percent stake, had taken place at the instigation of the bank itself.

(Reporting by Angeliki Koutantou; writing by James Mackenzie)