Police in suburban Downers Grove are searching for a man they say broke into a high school in the area and attempted to rob a maintenance worker early Wednesday morning.

Around 1:35 a.m. Wednesday, police responded to Downers Grove North High School, located at 4436 Main Street, and discovered a man had entered the school through an unlocked window on the first floor and attempted to rob a maintenance worker.

The man approached the maintenance worker and demanded money, police said. Upon making contact with a second worker in the building, the man fled.

No weapon was displayed or inferred during the incident, according to authorities.

All exterior doors to the building were locked and secured, according to a letter from the school's superintendent and principal. School staff worked thr

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