A mysterious stomach big at a Middleboro school has some people very cautious.

According to WPRI, Massachusetts state officials are invesitgating a mysterious stomach bug that has seen over 250 students and teachers go down with sickness.

Reports indicate that half the school and faculty fell ill last Friday. While the school mas disinfected over the weekend, many were still absent as of Monday and Tuesday. Officials are looking into what caused the sickness to infect so many.