Greek debt crisis live: Greece in turmoil over reports of drachma return plot - Some members of Greece's ruling Syriza party reportedly wanted to raid central bank reserves and hack taxpayer accounts seeking a return to the drachma.

The reports about drachma return rocked Greece and brought to fore the chaos in Syriza party.

No one knows whether the Syriza really considered the plans, attributed to former energy minister Panagiotis Lafazanis and ex-finance minister Yanis Varoufakis. It is notable that both ministers were sacked this month but the opposition parties have sought an explanation from the government over these reports which surfaced on Sunday.

About a quarter of Syriza's 149 MPs were against Greek Prime Minister Alexis Tsipras' proposals to pass sweeping austerity measures in exchange for up to USD 86bn in fresh loans. Tsipras is not finding it tough to hold the party together.

In an interview with RealNews daily on Sunday, Lafazanis said he had urged the government to tap the reserves of the Bank of Greece in defiance of the European Central Bank.

Lafazanis has argued for a return to the drachma, arguing that it would allow pensions and public sector wages to be paid if Greece decides to exit euro. "The main reason for that was for the Greek economy and Greek people to survive, which is the utmost duty every government has under the constitution," he said.

In a separate report, Varoufakis was quoted as saying that a small team in Syriza had prepared plans to secretly copy online tax codes.

"This would have created a parallel banking system, which would have given us some breathing space, while the banks would have been shut due to the ECB's aggressive policy," Varoufakis was quoted as saying.