CHICAGO (CBS) — A lockdown was lifted at Niles West High School in north suburban Skokie after a police incident Monday afternoon.

The Skokie Police Department was contacted by the parent of a student shortly after 1 p.m. That parent’s student said a fellow classmate had brought a gun to school.

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In response to the allegation, the high school was placed on lockdown while police investigated.

Skokie Police found the weapon in question: an Air Soft BB-type pistol. No injuries were reported.

Two juveniles have been detained in connection with this incident, police said.

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Anyone with information or details related to the incident is asked to contact the Skokie Police Department by calling (847) 982-5900.