Holmes Middle School in Wheeling placed on lockdown after reports of gun inside building

WHEELING, Ill (CBS) -- A Wheeling middle school was placed under lockdown after reports of a gun inside the building Tuesday.

Chopper 2 was over the middle school Tuesday afternoon. Classrooms were eventually dismissed one at a time.

Police believe it was an airsoft or BB-style gun and say there is no active threat.

Classes will resume Thursday with counselors to support all students and staff.

There is no school on Wednesday for the Yom Kippur holiday.