Yemeni President Ali Abdullah Saleh has signed an agreement to transfer to his vice president.

Saleh was shown on Arabic satellite television stations Wednesday signing a proposal by his country's powerful Gulf Arab neighbors to end his country's 9-month old uprising.

Saudi state TV showed a smiling Saleh sitting next to Saudi King Abdullah in the Saudi capital Riyadh as he signed four copies of the proposal. He then clapped briefly.

The plan calls for a power transfer to Saleh's vice president, Abed Rabbo Mansour Hadi, within 30 days and early presidential elections within 90 days of the signing. It also calls for a two-year transition period.

The deal gives Saleh immunity from prosecution.

THIS IS A BREAKING NEWS UPDATE. Check back soon for further information. AP's earlier story is below.

UNITED NATIONS (AP) _ U.N. Secretary-General Ban Ki-moon says Yemeni President Ali Abdullah Saleh has told him he will travel to New York for medical treatment after signing an agreement to end his 33-year rule.

Ban told reporters Wednesday that he talked with Saleh by telephone, and would be happy to meet with him in New York. He provided no information about when Saleh planned to arrive in New York, nor what treatment he would be seeking.

Saleh's signature on an accord brokered by Yemen's powerful Gulf Arab allies would start a new chapter in the nine-month popular uprising that has shaken the Arab world's poorest country. Saleh has repeatedly agreed to sign the deal, only to back away at the last minute.