(NBC News) A package exploded inside a Texas FedEx facility overnight.
The facility is located in Schertz, about 20 miles outside of San Antonio.
Officials stress that at this time they have not connected the explosion to four other recent bombings in Austin.
Law enforcement officials say the package was on a conveyor belt when it detonated.
There were about 75 workers inside the facility when the explosion occurred. One was treated for a headache that may have resulted from the concussion of the blast.
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