Students returned to class after bomb threat prompted the evacuation of Fenwick High School in Oak Park Monday morning.
All staff and students are safe following an evacuation of the campus at 505 Washington Blvd., Principal Peter Groom said in a statment.
"After a thorough search of the premises with bomb-sniffing dogs, the Oak Park Police Department has given Fenwick the 'all clear,'" Groom said.
Students were walking back from Ascension Church, where they had sheltered after the evacuation.
Police had contacted the school about a bomb threat at 10:20 a.m., Oak Park spokesman David Powers said.
No other details were released.
