CHICAGO (CBS) — The Chicago police superintendent says he’ll be ready if police have to deal with the sudden exodus of students from the classroom to the street – in case there’s a strike.

The Chicago Public Schools will have some schools open for half a day, if there’s a strike.

READ MORE: Chicago Weather: Frostbite Risk Within 30 Minutes Of Exposure As Wind Chills Drop Below Zero

And that in itself is an issue for Police Supt. Garry McCarthy.

LISTEN: WBBM Newsradio’s Steve Miller Reports

“We do have concerns and we’re working with CPS to ensure that rival gang members are not put into the same places,” McCarthy said.

READ MORE: Chicago Weather: Tips Lower Your Gas Bills As Temperatures Drop

“The fact is, we just came out of the summer where those kids were not in school for the most part anyway,” he said. “So it’s really just going to extend exactly what we’re doing.”

He says he’s working with the Chicago Public Schools to make sure rival gang members aren’t placed in the same school.

McCarthy says police resources will be concentrated well into the early morning hours.

MORE NEWS: CTA Blue Line Service Resumes After Man Killed By O'Hare Bound Train

“If the kids aren’t in school, the likelihood is they’re going to be awake later and perhaps out on the street,” he said.