BRUSSELS - The European Commission on Friday released plans to better manage internal borders in the Schengen passport-free travel zone, drawing the ire of countries refusing to hand Brussels such powers.

Cherished by travelers who can enjoy unfettered across Europe, the Schengen agreement faces an overhaul after changes were demanded by several EU states worried about sudden waves of immigration.

At the moment, governments are allowed to temporarily deploy border guards during terror threats or major events such as football games or summits, but countries are seeking more leeway to reclaim control.