CEDAR GROVE, WI (WHBL) - There will be extra law enforcement at Cedar Grove-Belgium High School this morning in the wake of a bomb threat Wednesday afternoon. The Sheboygan County Sheriff’s Department said the threat was discovered written on a bathroom wall about 2:45. Lt. Jason Lierman said an alert was then sent out to parents, the Milwaukee Bomb Squad was called in and did a sweep of the school, but found nothing and the building was declared safe.