Grillo euro referendum 'impossible', PD

(ANSA) - Rome, October 21 - The Democratic Party (PD) of Premier Matteo Renzi on Tuesday shot down a proposal by Beppe Grillo, the leader of the anti-establishment 5-Star Movement (M5S), for Italy to hold a referendum on the euro, saying such a ballot was proscribed by the constitution. "Over and above the value of the proposal, which is abstruse to say the least (...), we remind the Genoese comic and his distracted advisors that the Constitution does not allow referendums to be called on matters and subjects governed by international treaties," said PD MP Federico Gelli. Earlier on Tuesday Grillo said Italy must exit the euro to avoid a Greek-style financial meltdown. "Let's take back monetary sovereignty and emerge from the nightmare of bankruptcy via default... to not end up like Greece," said Grillo, launching a drive for a referendum on the subject.