SANAA, Yemen (AP) — Heavy airstrikes by the Saudi-led coalition rocked Yemen's capital Tuesday, striking Sanaa's densely populated neighborhoods in apparent retaliation for the killing of former President Ali Abdullah Saleh by the Shiite rebels who control the city.

Residents reported heavy bombing, and a U.N. official said at least 25 airstrikes hit the city over the past 24 hours. The Saudi-led coalition battling the rebels had thrown its support behind Saleh just hours before his death, as the longtime strongman's alliance with the rebels unraveled.

The U.N. Security Council called on all s...