At least two explosions were heard near the Shakra High School building in Abyan, where the Saudi-led coalition has reportedly set up base.
The US reversed a decision to bring an aircraft carrier home from the Gulf, with the Pentagon saying that due to "recent threats" by Iran the USS Nimitz would stay.
Yemeni Interior Minister Ibrahim Haidan said the speedy reopening of the airport underscored "the determination of the government to overcome obstacles and face the difficulties" cased by Wednesday's attack.
A report published by Yemen's military said thousands of Houthi fighters were killed in battles with Saudi-backed pro-government forces between January and December.
Pro-Iranian supporters, many dressed in black, massed in Baghdad's central Tahrir Square to also condemn Iraqi Prime Minister Mustafa al-Kadhemi as a "coward" and an "agent of the Americans".
Yemen, Afghanistan and Syria are the countries most at risk according to the IRC Emergency Watchlist for 2021.
The "world has become a total mess" since the killing of Qasem Soleimani last year, singer Hassan Tavakoli opines in the song.
Local officials said five women were killed, and children were among seven others wounded, when what appeared to be an artillery shell hit the wedding venue.
Across the world millions are at risk of acute hunger this year.
The airport explosion has killed dozens, and no group or individual has so far claimed responsibility.