King Salman doubled Saudi Arabia's aid commitment to Yemen to $540

million on Wednesday, the first day of a humanitarian pause in a bombing campaign it

has led against its neighbour.

"We announce that we are setting aside one billion riyals ($266 million) for aid and

humanitarian operations... in addition to more than one billion riyals ($274

million) we had already pledged," the official Saudi Press Agency quoted the king as

saying.