The head of the Arab League warned that Saleh's killing following the collapse of his uneasy alliance with the rebels threatens an "explosion in the security situation" in the war-ravaged country.
Humanitarian aid workers arrived in the Yemeni capital of Sanaa on Saturday, after a nearly three week blockade by the Saudi-led military coalition, an official at the UN's World Food Programme (WFP) said.
Yemen's rebel government on Tuesday announced the country's main international airport was fully functional again, one week after a Saudi-led air strike destroyed the facility's navigation system.
An air strike on Yemen's capital Sanaa killed 12 people including six children on Friday, rescuers said. The attack on the Faj Attan area on the outskirts of the city also severely damaged at least two buildings, reducing much of them to rubble, they said.
The rally marking 35 years since the founding of Saleh's Arab nationalist General People's Congress (GPC) sends out a signal that the strongman remains a force to be reckoned with.
Thousands of people gathered in the rebel-held Yemeni capital Monday to witness the public execution of a man convicted of raping and murdering a three-year-old girl.
The Saudi-led coalition fighting in Yemen prevented a UN flight carrying aid agency staff from travelling to the Houthi-controlled capital Sanaa on Tuesday because three international journalists were also aboard.