The Yemeni government has confirmed to the Saba news agency that the coast guard headquarters and another government building in Aden have been hit.
The Iran-backed Houthi rebels also claim to have attacked three airports - including one in the capital, Riyadh - two oil facilities, an oil pipeline and an air base in Saudi Arabia.
Saudi Arabia's Civil Defense says shrapnel from two ballistic missiles fired by the rebels and intercepted by Saudi forces fell in the area around the holy cities of Mecca and Medina.
The Houthis deny targeting Mecca and Medina, calling reports that they did so "a big and gross lie."
At least four people were also killed and several others injured when a house was hit in an airstrike on Sanaa, according to Houthi-linked media. In addition, six women and a child were reportedly killed in a separate attack on a cement factory in Sanaa.
Furthermore, five members of the same family were killed in a Saudi attack on the port city of Hodeida, according to the rebels.
As the war in the Middle East escalated, fighting in Yemen flared up again in July, after a ceasefire had been in place since 2022.
Both Saudi Arabia and the Yemeni government have recently been subjected to sustained attacks.
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