Riyadh, Oct. 12 -- Saudi Arabia extended the suspension of flights at its main international airport on Monday after fresh Houthi missile and drone attacks killed at least 14 people and injured more than 300, as US President Donald Trump considered joining the kingdom's military campaign against the Iran-backed Yemeni group.

King Khalid International Airport in Riyadh remained closed pending safety checks after successive attacks, including a strike on Saturday that killed 13 people and a further attack on Sunday that killed one, Saudi authorities said. The Houthis have also targeted King Fahd International Airport in Dammam and fuel facilities, raising concerns over the security of civilian aviation and critical infrastructure.

Trump has...