The blast left the factory a smoldering ruin, leveled homes and businesses for blocks in every direction, shook the ground with the strength of a small earthquake and could be heard dozens of miles away – sending flames shooting into the night sky and rained burning embers, shrapnel and debris down on shocked and frightened residents.
"They are still getting injured folks out and they are evacuating people from their homes," Waco police Sgt. William Patrick Swanton said early Thursday morning. He added later, "At some point this will turn into a recovery operation, but at this point, we are still in search and rescue."
Swanton said authorities believe that between five and 15 people were killed in the blast, but stressed that is an early estimate. There is no indication the blast was anything other than an industrial accident, he said.
Among those believe to be dead: Members of a group of volunteer firefighters and a single law enforcement officer who responded to a fire call at the West Fertilizer Co. shortly before the blast. They remained unaccounted for early Thursday morning.
The explosion that struck around 8 p.m. leveled a four-block area around the plant that a member of the city council, Al Vanek, said was "totally decimated."
The toll included 50 to 75 houses, an apartment complex with about 50 units that one state police officer said was reduced to "a skeleton," a middle school and the West Rest Haven Nursing Home, from which first-responders evacuated 133 patients, some in wheelchairs.
LM Otero / AP
Likened to Oklahoma City BombingOther witnesses compared the scene to something from the Iraq War or the 1995 Oklahoma City bombing, and authorities said the plant made materials similar to that used to fuel the bomb that tore apart that city's Murrah Federal Building.
Although authorities said it will be some time before they know the full extent of the loss of life, they put the number of those injured at more than 160 early Thursday. West Mayor Tommy Muska told reporters that his city of about 2,800 residents needs "your prayers."
"We've got a lot of people who are hurt, and there's a lot of people, I'm sure, who aren't gonna be here tomorrow," Muska said. "We're gonna search for everybody. We're gonna make sure everybody's accounted for. That's the most important thing right now."
In the hours after the blast, many of the town's residents wandered the dark and windy streets searching for shelter. Among them was Julie Zahirniako, who said she and her son, Anthony, had been playing at a school playground near the fertilizer plant when the explosion hit. She was walking the track, he was kicking a football.
The explosion threw her son four feet in the air, breaking his ribs. She said she saw people running from the nursing home and the roof of the school lifted into the air.
"The fire was so high," she said. "It was just as loud as it could be. The ground and everything was shaking."