A search is underway after a powerful explosion ripped through an explosives manufacturing plant in rural Tennessee on Friday. The blast sent plumes of smoke into the air and shook homes miles away. Here is what to know as first responders search the rubble for missing people and try to determine what caused the explosion.

### Search ongoing

There are casualties and injuries related to the explosion, but the Tennessee Emergency Management Agency isn’t sharing any numbers because the Department of Health hasn’t confirmed them, spokesperson Kristin Coulter said by telephone. Humphreys County Sheriff Chris Davis mentioned that there were several people unaccounted for, expressing the need to be mindful of families affected by the situation. It remains unknown how many people were inside the building at the time of the explosion. The strength of the blast was felt by residents in nearby Lobelville, leading to reports of shaken homes and widespread alarm.

### Manufacturing plant specialized in explosives

The cause of the explosion is currently unclear. Public records indicate that the plant sold numerous types of weapons to the U.S. military, including dynamite and explosive powder for shells. Accurate Energetic Systems, the company behind the facility, operates on a 1,300-acre site and specializes in explosives across various sectors, including military and commercial demolition. The company conducts daily tests, evaluating the impact of explosives under various environmental conditions, and sells products designed for strategic purposes and commercial use.