Cease-fire in Yemen collapses as air strikes resume

SANAA, Yemen — The Saudi-led coalition launched new air strikes in at least two Yemeni provinces on Monday, piercing a humanitarian pause that started just hours earlier at midnight, security officials said.

The U.S.-backed coalition of mainly Gulf Arab countries has been waging an air campaign since March against the Iran-supported Shiite rebels, who control most of northern Yemen and the capital, Sanaa.

Two of Monday’s air strikes killed 15 fighters allied with the coalition in the province of Lahj, security officials and field commanders said. More than 40 fighters were wounded in the apparently accidental strikes, they said, adding that the death toll was expected to rise.