Johannesburg - Zimbabwe's opposition leader Morgan Tsvangirai on Thursday said he planned to return home for a meeting with regional leaders and President Robert Mugabe on the implementation of a unity government.

Addressing journalists in South Africa, Tsvangirai said he would leave for Zimbabwe on Saturday.

The meeting in Harare was scheduled for next week, but no exact has been set, the South African Press Association (SAPA) reported.

Negotiations for power-sharing under a deal signed in mid- September have stalled, with Tsvangirai and Mugabe unable to agree on the distribution of ministries.

Tsvangirai has also lashed out at Mugabe over the ongoing detention and alleged torture of opposition activists and supporters.

"I don't have a credible partner in him (Mugabe), but he's crucial to the finality of this in getting this global agreement consummated," Tsvangirai was quoted as saying.

Zimbabwe is facing its worst economic and humanitarian crisis, for which the 84-year-old Mugabe has largely been blamed.

Initial international support for his role in a future government of unity has eroded as Mugabe, Zimbabwe's president for 28 years, appears as determined as ever to shut out the opposition. (dpa)