Germany and France want power to temporarily reintroduce boarder control to limit illegal immigrant flow, German newspaper Suddeutsche Zeitung reported Friday.

According to the daily, German Interior Minister Hans-Perter Friedrich had formulated a letter for the European Union (EU) with his France counterpart Claude Gueant, asking changing of the Schengen Agreement, which signed in 1985 and guarantees a boarder-free travel inside Europe.

The agreement grants passport-free travels within the area home to 400 million European. Once inside, illegal immigrant could theoretically move freely between countries, as people passing between the borders of two member states do not have to show identification.

The two ministers said in the letter that the reintroduction of internal boarder control within the Schengen area should be possible as a last resort and should last for a limited period, when a government is proven unable to stem illegal immigration from southern and eastern Europe.

The proposal is set to be discussed at the meeting of EU interior ministers, but a decision would not be made until June, said the newspaper.