Lebanon Seeks to Fill Power Vacuum Amid Worst Crisis in Decades

BEIRUT—Lebanon’s leaders shifted their focus Tuesday to forming a new government, a day after the country’s cabinet resigned under pressure from protesters furious about last week’s deadly explosion.

President Michel Aoun has asked departing Prime Minister Hassan Diab and his cabinet to remain in office as a caretaker government with limited powers until a new administration can be formed. With no apparent agreement on who should be the next prime minister, Mr. Aoun was left with little choice but to keep Mr. Diab’s government…