They say so far it wasn't on purpose but they have to wait till all the fires are out to make sure..
Explosion Rocks Fertilizer Plant During Fire
Wednesday, Apr 17, 2013 | Updated 9:36 PM CDT
An explosion has been reported at a fertilizer plant that is on fire in the town of West in McLennan County on Wednesday night.
A fire at the plant in the 300 block of Haven Street was reported shortly after 7 p.m.
Sources tell NBC 5 that the explosion occurred while firefighters were at the plant on a fire call.
First responders are reporting multiple injuries.
Waco DPS said there was major damage to homes and vehicles, as well as severe injuries to many people.
Viewers tell NBC 5 that a nearby funeral home and an apartment complex sustained serious damage after the blast.
Interstate 35 is closed in McLennan County because of the fire.
People as far north as south Arlington reported feeling the explosion, with many thinking at first that they felt an earthquake.
NBC 5 has crews on the way and we'll update this story with more information as soon as it's available. As this story is developing, elements may change.
NBC 5's Ben Russell contributed to this report.
I live in S.Arlington and didn't feel it...but omg it's a mess and still may explode AGAIN!