Massive Tornado Devastates Oklahoma

A massive tornado, perhaps an F5, swept through Moore, Oklahoma this afternoon. The number of injuries and extent of damage are still unknown, though aerial images of the destruction indicate that both could be substantial.

RELATED: As Tornado Death Toll Mounts, a Living Baby is Found 10 Miles From Home

Oklahoma City's KFOR-TV is streaming live coverage of the damage.

RELATED: Obama: Joplin 'Will Take Years to Build Back'

Images from TV broadcasts and live on the ground show massive destruction from the tornado, which was estimated to be a mile wide. Reports indicate that two schools have been damaged by the storm.

"THERE'S NOTHING" in wake of tornado, says @kfor chopper over Plaza Towers Elementary in Moore, OK. twitter.com/NewsBreaker/st…

— NewsBreaker (@NewsBreaker) May 20, 2013

This was the tornado at SE 4th and Sunny Lane. Tornado went right in front of us as debris flying overhead. #okwx twitter.com/DanielleDozier…

— Danielle Dozier (@DanielleDozier) May 20, 2013

NEW PHOTO: Fire burning in Moore, Oklahoma following massive #tornado twitter.com/nbcnightlynews…

— NBC Nightly News (@nbcnightlynews) May 20, 2013

Heartbreaking image of Moore, OK, devastated by a huge tornado twitter.com/FallonShreve/s…

— BuzzFeed News (@BuzzFeedNews) May 20, 2013

PRELIMINARY tornado damage track for the Newcastle-Moore-South OKC tornado. Based on radar and damage reports. #okwx twitter.com/NWSNorman/stat…

— NWS Norman (@NWSNorman) May 20, 2013

Moore is just south of Oklahome City, as seen on the map below.

RELATED: Two Dallas County Tornadoes Have Already Caused Damage

Moore was devastated by an F5 in 1999 and an F4 in 2003.

RELATED: Displaced Alabama Residents Stand Up to Trailer Ban

Photo: Still image of a damaged school, via KFOR-TV.