The head of the World Health Organization said on Friday he was not sure he was going to survive an air strike on Yemen's main airport carried out by Israel a day earlier during a series of attacks on the Iran-aligned Houthi movement.

The head of the World Health Organization said he was about to board a flight in the Yemeni capital when the airport came under bombardment.

Tedros Adhanom Ghebreyesus tells the BBC he felt "completely exposed" during the Israeli strike on Yemen's international airport.

The U.N. air crew member hurt in an air strike on Yemen's main international airport on Thursday suffered serious injuries but is now recovering in hospital, a spokesperson for the World Health Organization said on Friday.

A round of Israeli airstrikes against Houthi rebels hit an airport in Yemen Thursday. The U.N.'s World Health Organization said its director-general was boarding a plane when the attack happened. CBS News senior foreign correspondent Holly Williams has more.