A Zimbabwean archbishop has called for South Africa to cut off electricity supplies to make President Robert Mugabe hold talks with the opposition.
Archbishop Ncube is a vocal critic of Mugabe
Archbishop Pius Ncube, known for his outspoken criticism of Mr Mugabe, said South Africa should use sanctions, just as they were used against apartheid.
Zimbabwe is in serious arrears to South African companies for imports of electricity and fuel.
South Africa has been criticised for not being tougher on Mr Mugabe.
"Zimbabwe is owing billions in electricity (bills). They just would need to be told: 'Hey you people, settle your affairs or else we cut off'," Archbishop Ncube told South African radio.
"Then Mugabe would be forced to dialogue with the opposition because Mugabe is refusing to talk to them."
Both the Commonwealth and the European Union see talks between Mr Mugabe's Zanu-PF party and the opposition Movement for Democratic Change as a way to end Zimbabwe's political and economic crisis.
The leaders of African power-brokers South Africa and Nigeria have said that Mr Mugabe had agreed to talks.
But last month, he ruled it out while the MDC is "dictated to from abroad".
He has always accused it of being a front for former colonial power Britain and white farmers opposed to land reform.
Mr Mugabe and his associates are banned from travelling to the EU and the United States because of concerns over his human rights record and the way elections have been conducted.