Germany will introduce extended border controls with Poland and the Czech Republic this week to curb illegal migration, Interior Minister Nancy Faeser said on Wednesday, as a surge in migrant arrivals exposes the cracks in the European Union's asylum system.

The EU borders need better controls, otherwise the Schengen border regime is in danger, she said at a news conference in Berlin.

(Reporting by Alexander Ratz, Writing by Kirsti Knolle, Editing by Rachel More)