The Montgomery County Bomb Squad and Police converged on North Penn High School for the report of two suspicious water bottles. A teacher saw the first bottle just before 7:30 in the morning Wednesday behind a parked security vehicle in the back off the building. The school was not evacuated. The bomb squad used a pellet gun to open a hole in the bottle and tests later determined the substance did not pose any danger. The second suspicious bottle was discovered just before 2:30pm in a part of the parking lot. The bomb squad took the bottle to conduct tests on the contents. police and school district officials say charges will be filed against the person or persons who left the bottles outside the school.