HARARE, September 15, 2008 (AFP) - Zimbabwe's power-sharing deal signed Monday signals a new dawn but the question remains as to whether the deal will hold, African Union chairman Jakaya Kikwete said Monday.

'Will it hold or will it not? That is the question,' Kikwete said, while urging Zimbabwean political parties to implement the agreement signed by President Robert Mugabe and his political rival Morgan Tsvangirai.

Kikwete, who is president of Tanzania, described the accord, which makes Tsvangirai prime minister, as 'the beginning of a new dawn'.

'This is a great day for the SADC (Southern African Development Community) region, for the continent and indeed for the world at large,' he said.

'Zimbabwe's success is our success. The people of Tanzania will always support you.'