The French government said Monday it would press ahead with a ban on mobile phones in high schools from next month, but trade unions warned that the measure might be hard to implement quickly.

PARIS — The French government said Monday it would press ahead with a ban on mobile phones in high schools from the start of the new school year. I...

The French government said on Monday it would press ahead with a ban on mobile phones in high schools (lycées) from the start of the new school year.