A Saudi-led alliance has lifted a blockade of two key airports in Yemen, broadcaster Al Arabiya reported, amid warnings that millions in the war-torn country could starve without deliveries of food aid.
Local resident Mohammed Aatif said: 'I was sitting at home and heard the first strike hit the ministry of defence. "The house has been destroyed". He said there are reports that "one of the missiles hit a house" near the military building.
Witnesses said the number of casualties may rise as wounded are pulled from the rubble.
Yemeni officials announced on Friday evening that the Saudi-led Arab coalition fighting the Houthi militia has re-opened the Aden and Seiyoun airports four days after its decision to temporarily close Yemeni ports.
After an outcry from the United Nations, the coalition on Wednesday reopened Aden, which is controlled by pro-Saudi government forces, and on Thursday opened the land crossing at Wadea on the Saudi-Yemen border.
The United Nations and several humanitarian groups this week warned that millions could die in Yemen from starvation if the blockade, which includes relief aid, was not lifted.
More than 2,000 Yemenis have died in a cholera outbreak now affecting almost one million people.