UPDATE: Police Seek Suspect After St. Peter School Lockdown, Bomb Threat

5 p.m. Monday, Nov. 14—Geneva police are searching for a middle-aged white male who threatened to "blow up" St. Peter School if it wasn't evacuated Monday afternoon.

students were held in lockdown in the morning after someone broke a window and left a white powdery substance in an envelope. Then students were evacuated sometime before 2 p.m. Monday when the school received the bomb threat.

"At 1:46 p.m. Geneva Police Department units were dispatched to St. Peter School and Church, 1881 Kaneville Road, in reference to a report of a bomb threat," said Cmdr. Julie Nash in a press release that went out about 5 p.m.

"Geneva units were advised that a subject at St. Peter School was approached while outside of the building and advised by an unknown subject that the building was going to blow up if everyone did not evacuate."

When the police were advised of the bomb threat, "all students and personnel were evacuated from within the building to a safe location," the press release said.

All students were ultimately reunited with their parents or guardians.

"With the assistance of the Kane County Sheriff’s Department and Cook County Sheriff’s Department’s K-9 units, the school and church were searched, with negative results," the release said.

"The police cannot speculate on whether this incident is related to the earlier (incident.)"

Police describe the suspect as a white male, about 40 years old with short brown hair, blue eyes and a medium build. He had "a couple days' unshaven face" and was seen driving a white minivan with tinted windows.

The lockdown of and St. Peter School began at around 10 a.m., when Geneva police were dispatched "in reference to a criminal damage to property report (broken window)," an earlier  press release said.

"While at the scene, units were advised by school personnel that a suspicious envelope had been located in the office area where the window had been broken. The envelope contained an unknown substance. (Because the substance was) unknown, it was determined by the school administration, Geneva Police Department and Geneva Fire Department that the school would go into a lockdown.

"With the assistance of the Aurora Fire Department, it was determined that the substance was a non-threatening household product. ... There is no further identifying information on the substance at this time."

At 2 p.m., a  truck and at least a half dozen police officers were in the St. Peter parking lot, overseeing what appeared to be a search or examination of the school.

Nash said at about 2:15 p.m. that the school received a threat, and the threat appeared to have passed.