The Saudi-led Arab coalition said on Saturday it had detected new hostile activities by the Iran-backed Houthi militias at Sanaa International Airport.
The coalition revealed that a surveillance drone was launched from the facility towards other Yemeni regions.
Last week, coalition spokesman Turki al-Malki had stated that the Houthis had transformed Sanaa airport into a military testing base and a platform to launch cross border attacks.
The Houthis are a danger to United Nations planes, agencies and relief staff, he warned.
Iran has turned the airport into a main base for the launch of hostile attacks, he added.
Moreover, Iran has used the facility to deliver various weapons to the terrorist militias, he continued.
The coalition also released footage that prove the Houthis' use of a UN plane as a mock target in a military test of an air defense system.
Other footage confirmed previous coalition statements that the Houthis had transformed the airport into a military camp and factory for the manufacture and storage of armed drones and ballistic missiles that are used in attacks in Yemen and beyond.