The latest round of strikes occurred as the United States and its ally Israel struggle to halt a campaign of regional assaults by Yemen’s Houthi militants.

The WHO Director-General said the explosions that rocked the building were so deafening that his ears were still ringing more than a day later.

Israeli fighter jets targeted sites in Yemen on Thursday, including the international airport of the capital Sana'a, in response to attacks by the Iran-backed Houthi movement. The Houthi-controlled health ministry said at least four people were killed and 42 injured.

STORY: This is the moment an Israeli air strike hit a tower at Yemen’s Sanaa airport on Thursday.Reuters verified the date by aftermath footage and reports of the strike, and was able to confirm the location as objects seen in videos matched file and satellite imagery of the area.

Director-general Tedros Adhanom Ghebreyesus was in Sanaa airport waiting to board a flight when it came under Israeli bombardment.

General Tedros Adhanom Ghebreyesus says he and colleagues "escaped death narrowly" when an Israeli airstrike targeted Yemen's main airport.

Tedros Adhanom Ghebreyesus, the head of the WHO, revealed that he and his colleagues "nearly escaped death" during an Israeli airstrike on an airport in Yemen. The attack, which occurred as they were leaving Sanaa on Thursday,

Israeli air strikes hit Yemen’s main airport as a civilian Airbus 320 with hundreds of passengers on board was landing and a UN delegation was waiting to leave, the UN’s top humanitarian official in Yemen.

Immediately after the airstrikes, U.N. security officials moved the delegation out of the VIP building and into five armored cars.

Footage shown on Yemen news channel Al Masirah showed the moment a Sana'a airport tower was hit by an Israeli strike. The footage also showed tarmac footage, allegedly showing a United Nations pilot being injured during the strike.