The suburban Phoenix JCC received the anonymous threat on Wednesday morning and by early afternoon announced on Facebook that children "are safely returning."
An unidentified caller said a bomb would explode in a locker in the Ann Arbor building in 30 minutes, but no explosives were found in a police search that included bomb-sniffing dogs.
The 20-year-old employee had worked at the JCC’s day camp and has been suspended from a position in its afterschool program; the alleged crime did not take place at the JCC.