Britain says it's creating a "secure zone" in the French port of Calais for British-bound trucks to tackle the problem of migrants stowing away in the vehicles.

Home Secretary Theresa May said Tuesday that the move would provide a secure waiting area for 230 vehicles and stop truck drivers from becoming sitting targets for those attempting to illegally enter Britain.

The northern French city of Calais is a key port for sea and land crossings to Britain. In recent months, thousands of migrants from Eritrea, Sudan and beyond have camped out around the city, and some try to sneak across the English Channel by getting onboard trucks and freight trains.

The encampments have soured relations between Britain and France, which blame each other for failing to cope with the crisis.