May 21, 20136:19 AM ET

MOORE, Okla. (AP) — Spotlights bore down on massive piles of shredded cinder block, insulation and metal as crews worked through the night lifting bricks and parts of collapsed walls where a monstrous tornado barreled through the Oklahoma City suburbs, demolishing an elementary school and reducing homes to piles of splintered wood. At least 51 people were killed, including at least 20 children, and those numbers were expected to climb, officials said Tuesday.

May 21, 20135:33 AM ET

MOORE, Okla. (AP) — The parents and guardians stood in the muddy grass outside a suburban Oklahoma City church, listening as someone with a bullhorn called out the names of children who were being dropped off — survivors of a deadly tornado that barreled through their community.

May 21, 20136:06 AM ET

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May 21, 20134:58 AM ET

MOORE, Okla. (AP) — I left the office as soon as I saw the tornado warnings on TV. I had photographed about a dozen twisters before 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.