Yemen's national airline said a commercial flight had landed at Aden worldwide airport on Tuesday after acquiring security permits, a step that will ease a blockade on one of the poorest Arab nations.
Last week, the Saudi-led coalition intensified its embargo on Yemen, closing all of the country's land, sea and air ports after Houthi rebels fired a ballistic missile towards the Saudi capital, Riyadh.
He said many weapons have been smuggled to the Houthis through Hodeida and the small ports they control. He said the flights would increase gradually over the coming days. The war has killed over 10,000 civilians, displaced 3 million people and left much of the country's infrastructure in ruins.
We heard [from the Saudis] that Aden and Mukalla ports are now open - but this is not enough.
According to local media reports, millions of civilians could avoid the suffering if the Saudi regime reopens this vital port so that humanitarian groups can deliver aid to the people in Yemen.
Houthi officials told Al Jazeera two air strikes targeted Sanaa's worldwide airport in the rebel-held capital early on Tuesday, making it unusable for aid flights and further complicating humanitarian efforts into the country.
Jamie McGoldrick of the U.N. Office for the Coordination of Humanitarian Affairs said Tuesday the world body is aware of an announcement that the coalition was allowing deliveries to two ports in southern Yemen. The taxiway, the ramp and the terminal were not hit, and they're in good condition.
Saudi Arabia and its allies tightened a longstanding blockade of Yemen's land, sea and air borders a week ago in response to a missile fired by the Iran-backed Huthis that was intercepted near Riyadh worldwide airport.
"The first step in this process will be taken within the next 24 hours and will include and involve the reopening of all ports and airports in areas controlled by the government of Yemen".
The blockade "is complicating what is already a catastrophic situation", McGoldrick said.
The United Nations insisted its aid operations need access to the ports of Hodeida and Saleef, saying that more than two-thirds of the people in need and 80 percent of all cholera cases are closest to the two ports.
Saudi Arabia announced it shut down all ports after a November 4 ballistic missile attack on Riyadh near its worldwide airport by the Shiite rebels known as Houthis.