Zimbabwe's prime minister said Sunday he is thankful for South African efforts to help rescue his coalition government, and he said South Africa's president is expected to visit the troubled neighboring country next week.

A spokesman for South African President Jacob Zuma did not comment on a possible visit, but said in a statement that a delegation of mediators sent by Zuma was leaving for Zimbabwe and expected to arrive late Sunday.

"We want to thank the government of South Africa, in particular President Zuma, for helping us," Zimbabwean Prime Minister Morgan Tsvangirai told about 30,000 people at a party rally in Harare. "They still continue monitoring what we are doing here in Zimbabwe."

Tsvangirai, the country's longtime opposition leader, entered into a power-sharing agreement in February with President Robert Mugabe, who has ruled the country since its 1980 independence from Britain.

South African and other regional leaders had pushed for the coalition following a series of inconclusive elections marred by violence blamed on Mugabe's loyalists, urging the longtime rivals to work together to end their nation's political and economic crises.

But Tsvangirai temporarily withdrew from the unity government in October, cited the prosecution of one of his top aides among other issues. He returned three weeks later after receiving assurances that South Africa's president would intervene.

"People should not live in fear of violence or being beaten by police" because they support Tsvangirai's party, he said at Sunday's rally. "This must end."

Mugabe, in turn, accuses Tsvangirai of doing too little to persuade Western governments to lift foreign bank account freezes and other sanctions imposed on Mugabe and his top aides.

Tsvangirai said Sunday that instability in Zimbabwe also had affected South Africa, sending millions of economic refugees and political asylum seekers across the border. Continued...