Six students were hospitalized on Thursday due to a strong odor at their high school in Southeast Texas. KPRC-TV reports the odor at Caney Creek High School in Conroe was first detected on Wednesday, but officials said it was still there on Thursday and caused more than a dozen students to feel ill. The campus was evacuated, and the six students taken to the hospital are in stable condition. Investigators initially thought the smell was from a gas leak, but now think it could be a prank or a spray.