Texas fertilizer plant explosion

Firefighters use flashlights to search a destroyed apartment complex near a fertilizer plant that exploded earlier in West, Texas, in this photo made early Thursday morning, April 18, 2013.

A massive explosion at the fertilizer company injured more than 100 people and left damaged buildings for blocks in every direction. The death toll from the blast is 14.

Read more: Up to 15 dead in Texas fertilizer plant blast, scores hurt, police estimate

A plume of smoke rises from a fertilizer plant fire in West, Texas, April 17, 2013.

AP Photo/ Waco Tribune Herald, Rod Aydelotte

A person looks on as emergency workers fight a house fire after a nearby fertilizer plant exploded in West, Texas, April 17, 2013.

A plume of smoke rises from a fire near Waco, Texas on April 17, 2013.

The scene of a fertilizer plant explosion in West, Texas, April 17, 2013.

The moment when an explosion at a fertilizer plant fire in West, Texas, April 17, 2013, is captured on camera.

The scene of a fertilizer plant explosion in West, Texas, April 17, 2013.

A person looks on as emergency workers fight a house fire after a nearby fertilizer plant exploded in West, Texas, April 17, 2013.

An elderly person is assisted at a staging area at a local school stadium following an explosion at a fertilizer plant in West, Texas, April 17, 2013.

A victim from the West Fertilizer Co. plant explosion is wheeled into Hillcrest Baptist Medical Hospital in Waco, Texas, April 17, 2013.

Emergency workers assist an elderly person at a staging area at a local school stadium in West, Texas, April 17, 2013.

This aerial photo shows the remains of a fertilizer plant destroyed by an explosion in West, Texas, April 18, 2013.

This aerial photo shows the remains of a nursing home, left, apartment complex, center, and fertilizer plant, right, destroyed by an explosion in West, Texas on April 17, 2013.

This aerial photo shows the remains of a fertilizer plant destroyed by an explosion and an emergency responders vehicle, bottom left, in West, Texas, April 17, 2013.

This aerial photo shows the remains of a emergency responders vehicle, top right, and a fertilizer plant destroyed by an explosion in West, Texas on April 17, 2013.

In this aerial photo, law enforcement and rescue personnel search the damage to an apartment complex from the explosion of the West Fertilizer plant on April 17, 2013.

This aerial photo shows the remains of a fertilizer plant destroyed by an explosion in West, Texas on April 17, 2013.

This aerial photo shows the remains of a fertilizer plant, right, that exploded in West, Texas on April 17, 2013.

This aerial photo shows the remains of a burned and damaged school following a Wednesday night fertilizer plant explosion in West, Texas, April 17, 2013.

An unidentified man injured by the West Fertilizer Co. plant explosion is treated by nurses from Hillcrest Baptist Medical Hospital in Waco, Texas, April 17, 2013.

An emergency worker walks through a damaged apartment building following a fertilizer plant explosion in West, Texas, April 17, 2013. The explosion sent flames shooting high into the night sky, leaving the factory a smoldering ruin and causing major damage to surrounding buildings.

Emergency workers evacuate elderly residents from a damaged nursing home following an explosion at a fertilizer plant in West, Texas, April 17, 2013.

Elderly persons from a nearby nursing home are triaged in a parking lot before being moved to a school stadium following a fertilizer plant explosion in West, Texas, April 17, 2013.

Baylor University students hold a candlelight vigil outside Waco Hall for victims of the West fertilizer plant explosion, April 17, 2013.

Firefighters search an area destroyed by a fertilizer plant explosion in West, Texas on April 18, 2013.

Firefighters walk next to a destroyed apartment complex in West, Texas, April 18, 2013.

Rescue workers are seen near a damaged apartment complex after a nearby fertilizer plant exploded in West, Texas, April 17, 2013.

Baylor University students hold a candlelight vigil outside Waco Hall for the victims of the West fertilizer plant explosion, April 17, 2013.

Smoke fills the air after a fertilizer plant explosion in West, Texas, April 17, 2013.

A victim from the West fertilizer plant explosion is wheeled into Hillcrest Baptist Medical Hospital in Waco, Texas, April 17, 2013.

A victim from the West Fertilizer Co. plant explosion is wheeled into Hillcrest Baptist Medical Hospital in Waco, Texas, April 17, 2013.

The remains of a home can be seen burning early on April 18, 2013, after a fertilizer plant exploded in West, Texas.

Smoke rises in the distance about half a mile from the West Fertilizer Company in West, Texas, April 18, 2013.

Firefighter checks a children's bedroom during search and rescue effort of an apartment complex in West, Texas, April 18, 2013.

The front of an apartment complex destroyed by the explosion is seen in West, Texas, April 18, 2013.

Firefighters search an area in West, Texas, April 18, 2013 that was destroyed by a fertilizer plant explosion.

The remains of a fertilizer plant destroyed by an explosion in West, Texas is seen on April 18, 2013.

Firefighters conducting a search and rescue operation in West, Texas, April 18, 2013.

The front of this apartment complex in West, Texas is seen on April 18, 2013 having been destroyed by an explosion at a nearby fertilizer plant.

A firefighter stands on a rail line and surveys the remains of a fertilizer plant destroyed by an explosion in West, Texas, April 18, 2013.

A search and rescue dog is led through the blast zone in West, Texas, April 18, 2013.

A firefighter conducting a search and rescue operation at an apartment complex in West, Texas on April 18, 2013.

Firefighters set a brace to hold up a sagging beam during a search and rescue operation at an apartment complex in West, Texas on April 18, 2013.

A firefighter surveys the blast zone destroyed by an explosion at a fertilizer plant during search and rescue efforts iin West, Texas on April 18, 2013.

Paul Moseley/The Fort Worth Star-Telegram/AP

Mangled metal and crushed vehicles are all that remains at the blast site of the West Fertilizer Company in West, Texas on April 18, 2013.

A piece of debris from a fertilizer plant explosion sits in a field far from the blast zone in West, Texas, Thursday, April 18, 2013.

Mangled metal and crushed vehicles are all that remains at the blast site of the West Fertilizer Company in West, Texas on April 18, 2013.

A deer head mount sits inside a damaged car parked next to the apartment complex that was severely damaged by an explosion at the fertilizer plant in West, Texas on April 18, 2013.

A railroad boxcar filled with ammonium nitrate lays on its side near to the remains of the fertilizer plant that exploded on April 17, 2013 in West, Texas.

Texas Governor Rick Perry arrives to brief the media in West, Texas, on April 19 2013, two days after a deadly fertilizer plant blast.

Judy Tribble, and her daughter Savannah, age 12, listen during a service at St. Mary's Church of the Assumption in West, Texas, April 18, 2013.

Mourners attend a service at St. Mary's Church of the Assumption on April 18, 2013.

Volunteer Steven Blizzard,16, sorts through some of the donated shoes local residents can pick up at the West Fair and Rodeo grounds in West, Texas, April 19, 2013.

A "God Bless West" sign in West, Texas on April 19, 2013. The bodies of 12 people have been recovered after an enormous Texas fertilizer plant explosion that demolished surrounding neighborhoods for blocks and left about 200 other people injured.