May 21, 20134:28 PM ET

MOORE, Okla. (AP) — The search for survivors and the dead is nearly complete in the Oklahoma City suburb that was smashed by a mammoth tornado, the fire chief said Tuesday.

May 21, 20134:18 PM ET

WASHINGTON (AP) — Wind, humidity and rainfall combined precisely to create the massive killer tornado in Moore, Okla. And when they did, the awesome amount of energy released over that city dwarfed the power of the atomic bomb that leveled Hiroshima.

May 21, 20134:50 PM ET

MOORE, Okla. (AP) — I left the office in Oklahoma City as soon as I saw the tornado warnings on TV. I had photographed about a dozen twisters in the past decade, and knew that if I didn't get in my car before the funnel cloud hit, it would be too late.

May 21, 20134:03 PM ET

Residents sift through the remnants of their homes and parents embrace children outside a demolished elementary school. Emergency workers tend to the wounded.