State of emergency declared in Oklahoma after tornadoes slam Tulsa area

Storm damage at the River Oaks Mobile Home Park in Sand Springs, Okla., on March 26. The first batch of severe weather in this year’s tornado season devastated the mobile home park, as storms across the area damaged buildings, tore off roofs and left debris strewn across roads.  (Tom Gilbert / Associated Press)

A tree limb inside a tornado-damaged home in the River Oaks Estates mobile home park in Sand Springs, Okla., on March 26.  (Sue Ogrocki / Associated Press)

Firefighter Donny McMasters walks through the tornado-damaged River Oaks Estate mobile home park in Sand Springs, Okla., on March 26.  (Sue Ogrocki / Associated Press)

Storm damage at the River Oaks Mobile Home Park in Sand Springs, Okla., on March 26.   (Tom Gilbert / Associated Press)

This frame taken from video provided by Brenton Leete shows a funnel cloud in Sand Springs, Okla., on March 25.   (Brenton Leete / Associated Press)

An Instagram photo shows the funnel cloud of a tornado reaching the ground as a storm approaches Sand Springs, Okla., on March 25.  (Alix Chin / EPA)

An aerial photo shows storm damage to the Aim High Academy building, where the roof collapsed on March 25 in Sand Springs, Okla.   (Tom Gilbert / Associated Press)

People survey storm damage in Sand Springs, Okla., on March 25.   (Joey Johnson / AP)

Debris litters the area after a storm damaged homes in Sand Springs, Okla., on March 25.   (Matt Barnard / Associated Press)