"We are still calling for a full, extraordinary summit to assist us in resolving this issue," George Sibotshiwe, a Tsvangirai spokesman, said late yesterday.
Mugabe and Tsvangirai signed a power-sharing deal last month but are deadlocked over allocating ministries in a 31-member Cabinet.
Tsvangirai, who led the voting in the first round of Zimbabe's presidential voting last spring but lost a violence-marred runoff to Mugabe in June, says Mugabe's long-ruling ZANU-PF party is trying to keep too many of the most powerful ministries, including those responsible for finance and police.
Tendai Biti, Tsvangirai's chief negotiator, said in South Africa yesterday that lack of progress during negotiations last week raised questions about whether Mugabe could be trusted to carry out the Sept. 15 agreement.
Biti said more questions were raised when Tsvangirai, who was awaiting a new passport after filling all the pages in his previous one, had to fight for travel documents for the Swaziland meeting. Biti said an emergency travel document was produced over the weekend, but said Tsvangirai considered that an "insult."
"The issue of a passport is a mere symptom. The real problem [is] there is no readiness on the part of ZANU-PF to engage in a cooperative government with Morgan Tsvangirai and the MDC [Movement for Democratic Change]," Biti said.
Swaziland's King Mswati III, who presided at yesterday's meeting, did not address the call for a full regional summit. But he told reporters that because of Tsvangirai's absence, little was said about Zimbabwe during the session despite the presence of Mugabe and Arthur Mutambara, leader of a smaller opposition faction.