Prime Minister Antonis Samaras said on Thursday morning the country needed to prove it was serious about meeting promises made to international creditors to receive funds and remain in the euro area.

The government is close to finalizing the two-year 11.5 billion euro package of spending cuts required for the next tranche of funds, Samaras told members of his New Democracy party in Athens.

That package contains “painful, necessary spending cuts” and will be the last of its kind because Greek society can no longer take such austerity measures, he said.