Police are investigating what was inside the candy that sent eight Texas middle school students to the hospital. 

Early Tuesday afternoon, officials at Granbury Middle School, a city about an hour southwest of Fort Worth, reported that eight students had eaten the tainted candy, according to a post on Facebook by the City of Granbury.

The candy was brought to school by another student, according to city officials.

The students were taken to the hospital and are all reported to be fine and in good condition. 

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City officials said that the candy was tested for THC, which is the chemical compound in marijuana that gets people high, but that the candy all came back negative.

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City officials also stated that the candy was initially believed to be a narcotic. 

Police confirmed they are working with school officials on the incident and that more testing will be done as the investigation continues.

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Granbury Middle School officials and the Granbury Police were not immediately available for comment.