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.

An Israeli strike on the international airport in Sanaa, Yemen, on Dec. 26, killed at least four people, according to local media. Houthi attacks on Israel have ramped up in recent weeks.

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.

Yet another stowaway managed to board a major airline’s plane – renewing serious questions and concerns about airport safety during the busiest travel season of the year.

This incident comes less than a month after another unticked passenger managed to make it aboard a Delta flight from New York to Paris where they were arrested once the plane landed

A Delta Air Lines flight at Seattle-Tacoma International Airport was involved in yet another stowaway incident. The event, which took place on Christmas Eve, has rekindled concerns regarding airport safety procedures and screening policies.